US7079079B2 - Low profile compact multi-band meanderline loaded antenna - Google Patents

Low profile compact multi-band meanderline loaded antenna Download PDF

Info

Publication number
US7079079B2
US7079079B2 US10/881,742 US88174204A US7079079B2 US 7079079 B2 US7079079 B2 US 7079079B2 US 88174204 A US88174204 A US 88174204A US 7079079 B2 US7079079 B2 US 7079079B2
Authority
US
United States
Prior art keywords
antenna
current path
plane
radiating structure
conductor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US10/881,742
Other versions
US20060001575A1 (en
Inventor
Young-Min Jo
Frank M. Caimi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skycross Co Ltd
Skycross Inc
Original Assignee
Skycross Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Skycross Inc filed Critical Skycross Inc
Priority to US10/881,742 priority Critical patent/US7079079B2/en
Assigned to SKYCROSS, INC. reassignment SKYCROSS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CAIMI, FRANK M., JO, YOUNG-MIN
Publication of US20060001575A1 publication Critical patent/US20060001575A1/en
Application granted granted Critical
Publication of US7079079B2 publication Critical patent/US7079079B2/en
Assigned to SQUARE 1 BANK reassignment SQUARE 1 BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SKYCROSS, INC.
Assigned to NXT CAPITAL, LLC reassignment NXT CAPITAL, LLC SECURITY AGREEMENT Assignors: SKYCROSS, INC.
Assigned to EAST WEST BANK reassignment EAST WEST BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SKYCROSS, INC.
Assigned to SKYCROSS, INC. reassignment SKYCROSS, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: SQUARE 1 BANK
Assigned to HERCULES TECHNOLOGY GROWTH CAPITAL, INC. reassignment HERCULES TECHNOLOGY GROWTH CAPITAL, INC. SECURITY INTEREST Assignors: SKYCROSS, INC.
Assigned to ACHILLES TECHNOLOGY MANAGEMENT CO II, INC. reassignment ACHILLES TECHNOLOGY MANAGEMENT CO II, INC. SECURED PARTY BILL OF SALE AND ASSIGNMENT Assignors: HERCULES CAPITAL, INC.
Assigned to SKYCROSS, INC. reassignment SKYCROSS, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: NXT CAPITAL, LLC
Assigned to HERCULES CAPITAL, INC. reassignment HERCULES CAPITAL, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: HERCULES TECHNOLOGY GROWTH CAPITAL, INC.
Assigned to SKYCROSS, INC. reassignment SKYCROSS, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: EAST WEST BANK
Assigned to SKYCROSS KOREA CO., LTD. reassignment SKYCROSS KOREA CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ACHILLES TECHNOLOGY MANAGEMENT CO II, INC.
Assigned to SKYCROSS CO., LTD. reassignment SKYCROSS CO., LTD. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: SKYCROSS KOREA CO., LTD.
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364Creating multiple current paths
    • H01Q5/371Branching current paths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0442Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Waveguide Aerials (AREA)

Abstract

An antenna for transmitting and receiving radio frequency energy. The antenna comprises a conductive radiator comprising a first and a second conductive region for providing a first and a second current path length. A feed conductor and a ground conductor operate as meanderline (or slow wave) elements to provide an electrical length longer than a physical length.

Description

FIELD OF THE INVENTION
The present invention is directed generally to antennas for receiving and transmitting radio frequency signals, and more particularly to such antennas operative in multiple frequency bands.
BACKGROUND OF THE INVENTION
It is known that antenna performance is dependent upon the size, shape and material composition of the antenna elements, the interaction between elements and the relationship between certain antenna physical parameters (e.g., length for a linear antenna and diameter for a loop antenna) and the wavelength of the signal received or transmitted by the antenna. These physical and electrical characteristics determine several antenna operational parameters, including input impedance, gain, directivity, signal polarization, resonant frequency, bandwidth and radiation pattern.
Generally, an operable antenna should have a minimum physical antenna dimension on the order of a half wavelength (or a multiple thereof) of the operating frequency to limit energy dissipated in resistive losses and maximize transmitted or received energy. A quarter wavelength antenna (or multiples thereof) operative above a ground plane exhibits properties similar to a half wavelength antenna. Communications device product designers prefer an efficient antenna that is capable of wide bandwidth and/or multiple frequency band operation, electrically matched to the transmitting and receiving components of the communications system, and operable in multiple modes (e.g., selectable signal polarizations and selectable radiation patterns).
The half-wavelength dipole antenna is commonly used in many applications. The radiation pattern is the familiar donut shape with most of the energy radiated uniformly in the azimuth direction and little radiation in the elevation direction. Frequency bands of interest for certain communications devices are 1710 to 1990 MHz and 2110 to 2200 MHz. A half-wavelength dipole antenna is approximately 3.11 inches long at 1900 MHz, 3.45 inches long at 1710 MHz, and 2.68 inches long at 2200 MHz. The typical gain is about 2.15 dBi.
The quarter-wavelength monopole antenna disposed above a ground plane is derived from the half-wavelength dipole. The physical antenna length is a quarter-wavelength, but interaction of the electromagnetic energy with the ground plane causes the antenna to exhibit half-wavelength dipole performance. Thus, the radiation pattern for a monopole antenna above a ground plane is similar to the half-wavelength dipole pattern, with a typical gain of approximately 2 dBi.
The common free space (i.e., not above ground plane) loop antenna (with a diameter of approximately one-third the wavelength of the transmitted or received frequency) also displays the familiar donut radiation pattern along the radial axis, with a gain of approximately 3.1 dBi. At 1900 MHz, this antenna has a diameter of about 2 inches. The typical loop antenna input impedance is 50 ohms, providing good matching characteristics to the standard 50 ohm transmission line.
The well-known patch antenna provides directional hemispherical coverage with a gain of approximately 4.7 dBi. Although small compared to a quarter or half wavelength antenna, the patch antenna has a relatively narrow bandwidth.
Given the advantageous performance of quarter and half wavelength antennas, conventional antennas are typically constructed so that the antenna length is on the order of a quarter wavelength of the radiating frequency and the antenna is operated over a ground plane, or the antenna length is a half wavelength without employing a ground plane. These dimensions allow the antenna to be easily excited and operated at or near a resonant frequency (where the resonant frequency (f) is determined according to the equation c=λf, where c is the speed of light and λ is the wavelength of the electromagnetic radiation). Half and quarter wavelength antennas limit energy dissipated in resistive losses and maximize the transmitted energy. But as the operational frequency increases/decreases, the operational wavelength decreases/increases and the antenna element dimensions proportionally decrease/increase. In particular, as the resonant frequency of the received or transmitted signal decreases, the dimensions of the quarter wavelength and half wavelength antenna proportionally increase. The resulting larger antenna, even at a quarter wavelength, may not be suitable for use with certain communications devices, especially portable and personal communications devices intended to be carried by a user. Since these antennas tend to be larger than the communications device, they are typically mounted with a portion of the antenna protruding from the communications device and thus are susceptible to breakage.
The burgeoning growth of wireless communications devices and systems has created a substantial need for physically smaller, less obtrusive, and more efficient antennas that are capable of wide bandwidth or multiple frequency-band operation, and/or operation in multiple modes (i.e., selectable radiation patterns or selectable signal polarizations). For example, operation in multiple frequency bands may be required for operation of the communications device with multiple communications systems, such as a cellular telephone system and a global positioning system. Operation of the device in multiple countries also requires multiple frequency band operation since communications frequencies are not commonly assigned among countries.
Smaller packaging of state-of-the-art communications devices, such as personal handsets, does not provide sufficient space for the conventional quarter and half wavelength antenna elements. It is generally not considered feasible to utilize a single antenna for each operational frequency or to include multiple matching circuits to provide proper resonant frequency operation from a single antenna. Thus physically smaller antennas operating in the frequency bands of interest and providing the other desired antenna-operating properties (input impedance, radiation pattern, signal polarizations, etc.) are especially sought after.
As is known to those skilled in the art, there is a direct relationship between physical antenna size and antenna gain, at least with respect to a single-element antenna, according to the relationship: gain=(βR)^2+2βR, where R is the radius of the sphere containing the antenna and β is the propagation factor. Increased gain thus requires a physically larger antenna, while users continue to demand physically smaller antennas. As a further constraint, to simplify the system design and strive for minimum cost, equipment designers and system operators prefer to utilize antennas capable of efficient multi-band and/or wide bandwidth operation, to allow the communications device to access various wireless services operating within different frequency bands or such services operating over wide bandwidths. Finally, gain is limited by the known relationship between the antenna operating frequency and the effective antenna length (expressed in wavelengths). That is, the antenna gain is constant for all quarter wavelength antennas of a specific geometry i.e., at that operating frequency where the effective antenna length is a quarter of a wavelength of the operating frequency.
To overcome the antenna size limitations imposed by handset and personal communications devices, antenna designers have turned to the use of so-called slow wave structures where the structure's physical dimensions are not equal to the effective electrical dimensions. Recall that the effective antenna dimensions should be on the order of a half wavelength (or a quarter wavelength above a ground plane) to achieve the beneficial radiating and low loss properties discussed above. Generally, a slow-wave structure is defined as one in which the phase velocity of the traveling wave is less than the free space velocity of light. The wave velocity (c) is the product of the wavelength and the frequency and takes into account the material permittivity and permeability, i.e., c/((sqrt(εr)sqrt(μr))=λf. Since the frequency does not change during propagation through a slow wave structure, if the wave travels slower (i.e., the phase velocity is lower) than the speed of light, the wavelength within the structure is lower than the free space wavelength. The slow-wave structure de-couples the conventional relationship between physical length, resonant frequency and wavelength.
Since the phase velocity of a wave propagating in a slow-wave structure is less than the free space velocity of light, the effective electrical length of these structures is greater than the effective electrical length of a structure propagating a wave at the speed of light. The resulting resonant frequency for the slow-wave structure is correspondingly increased. Thus if two structures are to operate at the same resonant frequency, as a half-wave dipole, for instance, then the structure propagating a slow wave will be physically smaller than the structure propagating a wave at the speed of light. Such slow wave structures can be used as antenna elements or as antenna radiating structures.
BRIEF SUMMARY OF THE INVENTION
The present invention comprises an antenna comprising a radiating conductive structure having a first current path for providing a resonant condition at a first resonant frequency and a second current path for providing a resonant condition at a second resonant frequency. The antenna further comprises a common feed conductor for the first and the second current paths, wherein the feed conductor is connected to the radiating structure, and a common ground conductor for the first and the second current paths, wherein the ground conductor is connected to the radiating structure.
BRIEF DESCRIPTION OF THE DRAWINGS
The foregoing and other features of the invention will be apparent from the following more particular description of the invention, as illustrated in the accompanying drawings, in which like reference characters refer to the same parts throughout the different figures. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is top view of an antenna constructed according to the teachings of the present invention;
FIGS. 2 and 3 are views taken along different edges of the antenna of FIG. 1;
FIG. 4 illustrates an antenna constructed according to the teachings of the present invention mounted within a communications device;
FIGS. 5 and 6 illustrate a carrier for use with an antenna of the present invention;
FIG. 7 illustrates current flow paths for the antenna of the present invention;
FIG. 8 is a schematic illustration of the antenna of the present invention showing a magnitude of the current within the antenna;
FIGS. 9–12 illustrate alternative inner segments for the antenna of the present invention;
FIG. 13–17 illustrate alternative outer segments for the antenna of the present invention; and
FIGS. 18–20 illustrate another embodiment according to the teachings of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
Before describing in detail the particular antenna in accordance with the present invention, it should be observed that the present invention resides primarily in a novel and non-obvious combination of hardware structures. So as not to obscure the disclosure with details that will be readily apparent to those skilled in the art, certain conventional elements and steps have been described and illustrated with lesser detail, while other elements and steps pertinent to understanding the invention have been described and illustrated in greater detail.
The antenna of the present invention comprises a shaped conductive radiator having one or more meanderline structures connected thereto for providing desired operating characteristics in a volume smaller than a prior art quarter-wave structure above a ground plane. In one embodiment, the conductive radiator comprises a conductive sheet formed by stamping or cutting the desired shape from a blank sheet of conductive material. Certain regions of the stamped sheet are then shaped and/or bent to form the various features of the antenna. The relatively small antenna volume permits installation in communications device handsets and other applications where space is at a premium. The antenna of the present invention is generally considered a low-profile antenna due to its height (typically in the range of 3 to 4 mm), but it is recognized by those skilled in the art that there is no generally accepted definition as to the height of a low-profile antenna. Compared to prior art antennas, the antenna of the present invention is also relatively small in size. These advantageous physical attributes of the antenna are realized by employing meanderline slow wave structures for certain antenna elements to provide a required electrical length, and further by employing current path structures that exhibit the necessary electrical length and are properly coupled to provide the desired resonant conditions and operating bandwidth.
One embodiment of an antenna 10 of the present invention is illustrated in a top view of FIG. 1. The antenna 10 comprises a radiator 11 further comprising a high band region 12 conductively contiguous with a low band region 13. A segment 14 is conductively connected to the low band region 13 as explained below in conjunction with FIG. 3.
In another embodiment (not illustrated) an edge 13A of a region 13B is displaced below a plane of the radiator 11 and forms an acute angle with the plane of radiator 11.
As is known to those skilled in the art, there is no physical line of demarcation between the high band region 12 and the low band region 13. Rather, these two regions generally identify conductive structures in which currents flow to establish two different resonant conditions for the antenna. A high frequency resonant condition is established by current flow through the high band region 12, and a low frequency resonant condition is established by current flow through the low band region 13. The high and low band regions 12 and 13 provide adequate current flow along their respective paths, with proper coupling between the regions 12 and 13 to produce the desired resonant conditions.
The antenna 10 further comprises a feed conductor 50 and a ground conductor 52 depicted in phantom in FIG. 1. In the illustrated embodiment, each of the feed and ground conductors 50 and 52 comprises an L-shaped structure having a first segment disposed in a plane parallel to the plane of the radiator 11 and a second segment conductively connected at a substantially right angle to an edge 60. In one embodiment, the distance between the plane of the first segment and the plane of the radiator is about two to three millimeters. Thus the height of the antenna 10 is about 2 to 3 mm. When the antenna 11 is installed in a communications device, such as a cellular telephone handset, the first segment of each of the feed and the ground conductors 50 and 52 is connected to a signal feed terminal and a ground plane, respectively, of the communications device. Generally, such an antenna is considered a low profile antenna.
According to the embodiment of FIG. 1, a shape of the high band region 12 comprises an inverted T, wherein one arm of the inverted T is longer than another. The arms, designated 12A and 12B in FIG. 1, further comprise tabs 12C and 12D extending from the arms 12A and 12B as illustrated. Generally, the high band region 12 comprises a planar conductive region disposed in an interior region of the radiator 11. The low band region 13 is generally disposed in a boundary region of the radiator 11.
Alternative shapes for the high and low band regions 12 and 13 are described below. It is known by those skilled in the art that other shapes can be used to provide the desired resonant condition, so long as the shape provides an appropriate current path length relative to the desired resonant frequency.
A region 13C is disposed on a side surface of the antenna 10 and conductively connected to the region 13B along the edge 13A, as illustrated in an end view of FIG. 2, which is taken along the plane 22 in FIG. 1. In one embodiment, the region 13C extends from the radiator plane for a distance of about 2 to 3 mm.
FIG. 3 illustrates an end view of the antenna 10 taken along the plane 33 of FIG. 1. FIG. 3 generally indicates the location of the segments 13 and 14, which are conductively connected by a conductive bridge 56. An edge 58 of the bridge 56 is spaced apart from the radiator plane by a distance of about 2 to 3 mm. In one embodiment, the bridge 56 comprises a tab region 62 extending from an edge thereof, although this may not be required
In one embodiment, the radiator 11 is formed from a sheet of planar conductive material (copper, for example) from which material regions are removed to form the antenna elements as described and illustrated above. After formation of the elements in planar form, the conductive sheet is formed into the three-dimensional antenna structure by known bending processes. In another embodiment, the antenna 10 and its constituent elements are constructed using known patterning and subtractive etching processes on a conductive layer disposed on a dielectric substrate.
FIG. 4 illustrates the antenna 10 installed in a communications device 70, such as a cellular telephone handset. A printed circuit board 72 comprises a dielectric substrate carrying electronic components associated with operation of the communications device 70, such as transmitting, receiving and signal processing components and conductive interconnect regions disposed thereon for connecting the electronic components.
The printed circuit board 72 further comprises a feed terminal 76 for connecting to the feed conductor 50 and a ground terminal 78 for connecting to the ground conductor 52. Typically, an upper layer (or in other embodiments, a lower layer or an intermediate layer) of the printed circuit board 72 comprises a ground plane indicated generally by a reference character 79. In one embodiment of the communications device 70, the ground plane 79 does not extend below the antenna 10. That is, the ground plane is absent from a region generally indicated by a reference character 80.
The feed and the ground conductors 50 and 52 display slow wave characteristics due to the effect of the dielectric constant of the printed circuit board underlying the antenna 10. According to another embodiment of the invention, the feed and the ground conductors 50 and 52 are physically lengthened (or shortened) or electrically lengthened (or shortened) by utilizing additional meanderline structures, to effect antenna performance, especially the frequencies at which resonant conditions are established.
It is generally known that an antenna disposed over a ground plane must be spaced from the ground plane by a minimum distance of about 5 mm for the antenna to achieve the desired performance bandwidth, particularly at low antenna resonant frequencies such as 869–894 MHz and 824–849 MHz, which are assigned frequencies for devices operating according to the CDMA (code division multiple access) protocol, and at 880 to 960 MHz for devices operating according to the GSM (global system for mobile communications) protocol. For improved performance, according to the prior art the antenna/ground plane separation distance is typically maintained at about 7 to 8 mm.
One application for the antenna 10 of the present invention comprises a handset communications device wherein the allowed maximum distance between the plane of the radiator 11 and a plane of the printed circuit board 72 is only about 3 mm. Therefore, according to the teachings of the present invention, to achieve the desired antenna bandwidth, the ground plane 79 of the printed circuit board 72 is absent in the region 80 proximate the radiator 11. See FIG. 4. With this configuration, a distance between a region of high surface currents on the antenna 10, i.e., where the feed and ground conductors 50 and 52 are connected to the radiator 11, and the ground plane 79 is greater than about 3 to 5 mm. Generally, this distance is sufficient to provide the desired bandwidth at the antenna resonant frequencies, notwithstanding that the antenna height above the printed circuit board 72 is only about 3 mm.
Additionally, since the antenna 10 is relatively thin, the antenna elements must by nature be short and certain resonant conditions may not be attainable according to the prior art. Use of slow wave structures for the feed and ground conductors 50 and 52 allows these structures to present an electrical length that is greater than the physical length, thereby compensating for the thin antenna structure.
FIG. 5 illustrates a top view of an exemplary carrier 90 for mating with the antenna 10 to provide physical support to the antenna and its elements, ensuring that they remain in the correct relative physical relationships when installed in a communications device. So that the antenna elements can be related, at least generally, to the carrier features, certain antenna elements are illustrated in phantom in FIG. 5.
When mated with the carrier 90, the radiator 11 is disposed proximate an upper surface 90A of the carrier 90, and the feed and ground conductors 50 and 52 are disposed proximate a lower surface 90B. See FIG. 6. The bridge 56 (see FIG. 3) and the region 13C (see FIG. 2) are disposed on vertical side surfaces of the carrier 90. Thus, the antenna 10 essentially captures the carrier 90.
In one embodiment, the carrier 90 is formed from a plastic material (several suitable materials are known to those skilled in the art). The carrier defines a plurality of openings 92A, 92B, 92C and 92D that reduce the dielectric loading effect on the antenna 10. It is generally known that the preferable antenna dielectric material is air, as other materials that exhibit a higher dielectric constant than air tend to reduce the antenna bandwidth. Thus the openings 92A, 92B, 92C and 92D are sized to reduce the dielectric loading to the extent practicable, while providing adequate mechanical support to the antenna 10.
The antenna 10 mechanically captures the carrier 90 and is affixed to the carrier 90 at a plurality of attachment points 94, with a plurality of exemplary attachment points illustrated in FIG. 5. In one embodiment, each attachment point 94 comprises a tab extending from an upper surface of the carrier 90 through a mating hole in the antenna 10. An upper surface of each tab 94 protruding through the antenna mating hole is staked or expanded to slightly increase a tab diameter and thus affix the antenna 10 to the carrier 90. For example, a downward force applied to the upper tab surface expands an upper tab region to urge the antenna 10 into contact with the upper surface 90A of the carrier 90. It is desired to uniformly and securely attach the antenna 10 to the carrier 90, as variations in a distance between the carrier 90 and the antenna 10 can introduce antenna performance variations.
FIG. 6 is a front elevation view of the carrier 90. Tabs 100 extend from the bottom surface 90B of the carrier 90 for engaging an antenna support structure 102 (shown in phantom) within a communications device. Those skilled in the art recognize that there are several techniques for mounting the antenna 10 within a communications device, including the illustrated tab capture mechanism.
In another embodiment of an antenna of the present invention, the antenna is mechanically attached to the printed circuit board or other attachment structure without the use of a carrier. As is known to those skilled in the art, an antenna having only an air dielectric may exhibit different performance characteristics than an antenna operative with the carrier 90, although the carrier 90 is designed to maximize, to the extent practicable, the air dielectric volume.
FIG. 7 illustrates antenna current paths 100 and 102 on the radiator 11. Current flow on the current path 100 produces a resonant condition at a first frequency (with an acceptable bandwidth above and below the first resonant frequency) wherein a length of the current path 100 is approximately equal to a quarter wavelength of the first frequency. In one embodiment, the first resonant frequency bandwidth is designated a high resonant frequency bandwidth (relative to the resonant condition of the second current path) and extends over a range between about 1800 MHz and 1900 MHz, which includes the DCS frequency band between 1710 and 1880 MHz and the PCS frequency band between 1850 and 1990 MHz.
Similarly, current flow on the current path 102 produces a resonant condition at a second or low resonant frequency (including a bandwidth above and below the low resonant frequency) wherein a length of the current path 102 is approximately equal to a quarter wavelength of the second frequency. Current flows from the low band region 13 to the segment 14 via the conductive bridge 56 (not visible in FIG. 7), such that the current path 102 includes the segment 14. In one embodiment, the low frequency resonant condition extends over a frequency band between about 880 and 960 MHz, which is the operational frequency band for the GSM service.
The current path 100 substantially comprises the high band region 12, but as is known to those skilled in the art, current flow is not necessarily confined to the high band region 12 during the high frequency resonant condition. Instead, current on the current path 100 dominates to produce the high frequency resonant condition for the antenna. Similarly, current flow on the current path 102 dominates to produce the low frequency resonant condition. Further, the illustrated current paths 100 and 102 are intended to generally depict regions of current flow during resonant conditions; those skilled in the art recognize that current flows throughout the high and low band regions 12 and 13 during their respective resonant conditions, and is not restricted to the illustrated current paths 100 and 102.
FIG. 8 is a schematic illustration of the antenna 10, indicating the current magnitude |I| for the current path 100 (high band resonance, |I f2|,) and the current path 102 (low band resonance, |I f1|). The current is maximum at the ground conductor 52, where the voltage is zero. Parasitic capacitors 110 and 112 between the radiator 11 and a ground plane 114 are illustrated schematically in FIG. 8.
As described above, in one embodiment the ground plane 114 is spaced laterally apart from the antenna 10 (see for example, FIG. 4) wherein the antenna 10 is installed in the communications device 70. In the illustration of FIG. 4, the ground plane 79 is absent from the region 80 immediately below the antenna 10. Since FIG. 8 is a schematic illustration, the ground plane is depicted as disposed below the radiator 11, but this is not intended to suggest that the ground plane is physically disposed below the antenna 10.
In FIG. 8, both the feed conductor 50 and the ground conductor 52 are illustrated by a symbol identifying these elements as having meanderline characteristics. A signal source 120 is connected between the ground plane 114 and the feed conductor 50.
FIGS. 9–12 illustrate alternative shapes 12W–12Z for the high band region 12 of the antenna 10. FIGS. 13–17 illustrate alternative shapes 13V–13Z for the low band region 13 (including the segment 14 electrically connected thereto via the conductive bridge 56). These alternative shapes for the high band region 12 and the low band region 13 are intended to create current path lengths (one each for the high band and the low band) that will cause the antenna to resonate at the desired frequencies with the desired bandwidth. Any one of the illustrated high band regions can be used with any one of the illustrated low band regions if an available space envelope can accommodate the physical combination of the selected regions. Those skilled in the art recognize that the region shapes illustrated are merely exemplary and other shapes can provide suitable antenna performance.
The embodiment of FIG. 15 further comprises a meanderline segment 130, for extending the electrical length of the outer segment 13X beyond its physical length. Such meanderline segments can be employed with any of the high band regions 12 and 12W–12Z and with any of the low band regions 13 and 13V–13Z.
FIG. 18 illustrates an embodiment of an antenna 200 including a radiator 202 further comprising a high band region 212 (illustrated generally with perpendicular cross-hatches) and a low band region 213 (illustrated generally with single cross-hatches). As in the previous embodiments, the high band region 212 presents a shorter current path (and a higher resonant frequency) than the low band region 213. The low band region 213 further comprises a conductive region 220 disposed in a plane parallel to a plane of the radiator 202. As shown in FIG. 18 and the cross section of FIG. 20, a tab 222 extends from an edge 226 of the low band region 213, and a finger 224 further extends from the tab 222. The conductive region 220 extends from the finger 224. As illustrated in FIG. 18 and the cross section of FIG. 19, a conductive region 243 extends from an edge 232 of the low band region 213. Thus the region 220, the tab 222, the finger 224 and the region 243 are elements of the low band region 213 through which the low band resonant current flows.
In any of the presented embodiments the location of the ground conductor 52 can be modified to affect the antenna performance. That is, moving the ground conductor 52 in a direction toward the high band region 12 (or the high band region 212) shortens the current path 100 and lengthens the current path 102. As a result, the high resonant frequency, which is determined by the length of the current path 100, increases in frequency, and the low resonant frequency, which is determined by the length of the current path 102, decreases in frequency. An opposite shift in the frequency resonances can be accomplished by moving the ground conductor 52 in a direction toward the low band region 13, i.e., lengthening the current path 100 and shortening the current path 102.
Generally, according to the teachings of the present invention, the antenna embodiments presented herein can be tuned to operate in various frequency bands or at various resonant frequencies by adding meanderline elements, by adjusting the length of the meanderline elements and/or by lengthening and/or shortening resonant current path lengths within the antenna. In the latter case, the high band region 12 and the low band region 13 can be lengthened or shortened to change the resonant conditions. Also, relocating the ground conductor 52, as described above, changes a ratio between the high and low resonant frequencies. Lengthening the ground conductor 52 changes both the high and low resonant frequencies, but generally imparts a greater change to the high resonant frequency. The radiating energy transmitted by the antenna is linearly polarized.
Additional resonant frequency bands can be created by adding meanderline elements. By adjusting certain meanderline element lengths, resonances in one frequency band can be modified without affecting resonant conditions in other bands. Thus the antenna offers separately tunable resonant frequency bands. In prior art antennas it is known that changing one antenna physical characteristic or dimension typically affects all the resonant frequencies of the antenna. The antenna of the present invention is not so limited. Also, scaling the dimensions of the antenna of the present invention (e.g., length, width, height above the ground plane) generally affects all the resonant frequencies.
An antenna architecture has been described as useful for providing operation in one or more frequency bands. While specific applications and examples of the invention have been illustrated and discussed, the principals disclosed herein provide a basis for practicing the invention in a variety of ways and in a variety of antenna configurations. Numerous variations are possible within the scope of the invention. The invention is limited only by the claims that follow.

Claims (22)

1. An antenna comprising:
a radiating conductive structure, further comprising:
a first current path for providing a resonant condition at a first resonant frequency;
a second current path for providing a resonant condition at a second resonant frequency, wherein the second current path comprises first and second segments in the plane of the radiating structure and a bridging segment electrically connecting the first and the second segments, the bridging segment extending out of the plane of the radiating structure along an edge of the second current path;
a common feed conductor for the first and the second current paths, wherein the feed conductor is connected to the radiating structure; and
a common ground conductor for the first and the second current paths, wherein the ground conductor is connected to the radiating structure.
2. The antenna of claim 1 wherein at least one of the feed conductor and the ground conductor comprises a slow wave meanderline conductor.
3. The antenna of claim 1 wherein a segment of the feed conductor and a segment of the ground conductor are disposed in a plane parallel to a plane of the radiating structure.
4. The antenna of claim 1 wherein the first current path comprises a planar conductive region disposed in an interior region of the radiating structure.
5. The antenna of claim 1 wherein a first portion of the first current path is in a plane of the radiating structure and a second portion of the first current path is outside the plane of the radiating structure.
6. The antenna of claim 1 wherein the bridging segment is substantially perpendicular to the plane of the radiating structure.
7. The antenna of claim 1 wherein the first current path is shorter than the second current path and the first resonant frequency is higher than the second resonant frequency.
8. The antenna of claim 1 wherein the second current path further comprises a third conductive segment conductively connected to the second current path, the third conductive segment in a plane other than the plane of the radiating structure.
9. The antenna of claim 1 wherein the first current path extends from the feed conductor along a first path on the radiating structure, and wherein the second current path extends from the feed conductor along a second path on the feed conductor.
10. The antenna of claim 1 wherein the first current path is non-overlapping with the second current path.
11. The antenna of claim 1 installed in a communications device having a ground plane, wherein the ground plane is spaced apart from the antenna, wherein any line perpendicular to and passing through the radiating conductive structure does not pass through the ground plane.
12. The antenna of claim 11 wherein the ground plane is spaced apart from the antenna by a distance greater than or equal to about 5 mm.
13. The antenna of claim 11 wherein the ground plane is spaced apart from a location where the feed conductor is connected to the radiating structure by a distance greater than or equal to about 5 mm.
14. The antenna of claim 11 wherein the ground plane is spaced apart from a location where the ground conductor is connected to the radiating structure by a distance greater than or equal to about 5 mm.
15. The antenna of claim 1 installed in a communications device having a substrate for supporting the antenna and having a ground plane, wherein the radiating structure is spaced apart from the substrate by a first distance and spaced apart from the ground plane by a second distance greater than the first distance.
16. The antenna of claim 15 wherein the first distance is about 3 mm and the second distance is about 5 mm.
17. The antenna of claim 1 wherein a length of the first current path is substantially a quarter wavelength at the first resonant frequency and a length of the second current path is substantially a quarter wavelength at the second resonant frequency.
18. The antenna of claim 1 wherein the first resonant frequency is between about 1800 MHz and 1900 MHz and the second resonant frequency is between about 880 MHz and 960 MHz.
19. An antenna comprising:
a slow wave ground conductor;
a slow wave feed conductor;
a planar conductive radiator conductively connected to the ground conductor and the feed conductor, the radiator comprising:
a high band region providing a first current path having a length to create a resonant condition at a first frequency; and
a low band region providing a second current path having a length to create a resonant condition at a second frequency, the second current path comprising first and second planar conductive segments and a bridging segment conductively connecting the first and the second segments, the bridging segment extending out of a plane of the first and the second conductive segments.
20. The antenna of claim 19 further comprising a ground plane spaced at least 5 mm from the radiator.
21. The antenna of claim 19 further comprising a carrier for supporting the antenna, wherein the antenna is affixed to the carrier.
22. The antenna of claim 21 wherein the carrier defines a plurality of openings therein.
US10/881,742 2004-06-30 2004-06-30 Low profile compact multi-band meanderline loaded antenna Expired - Fee Related US7079079B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/881,742 US7079079B2 (en) 2004-06-30 2004-06-30 Low profile compact multi-band meanderline loaded antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/881,742 US7079079B2 (en) 2004-06-30 2004-06-30 Low profile compact multi-band meanderline loaded antenna

Publications (2)

Publication Number Publication Date
US20060001575A1 US20060001575A1 (en) 2006-01-05
US7079079B2 true US7079079B2 (en) 2006-07-18

Family

ID=35513306

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/881,742 Expired - Fee Related US7079079B2 (en) 2004-06-30 2004-06-30 Low profile compact multi-band meanderline loaded antenna

Country Status (1)

Country Link
US (1) US7079079B2 (en)

Cited By (228)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060208956A1 (en) * 2003-11-24 2006-09-21 Emanoil Surducan Modified printed dipole antennas for wireless multi-band communication systems
US20080055164A1 (en) * 2006-09-05 2008-03-06 Zhijun Zhang Tunable antennas for handheld devices
US20080266189A1 (en) * 2007-04-24 2008-10-30 Cameo Communications, Inc. Symmetrical dual-band uni-planar antenna and wireless network device having the same
US20090051595A1 (en) * 2007-08-23 2009-02-26 Research In Motion Limited Multi-band antenna, and associated methodology, for a radio communication device
US20090256756A1 (en) * 2008-04-14 2009-10-15 Hon Hai Precision Industry Co., Ltd. Dual frequency antenna and communication system
US20100127950A1 (en) * 2001-04-11 2010-05-27 Gregory Poilasne Reconfigurable radiation densensitivity bracket systems and methods
US20120313819A1 (en) * 2011-06-13 2012-12-13 Chia-Tien Li Active Antenna and Electronic Device
US20120327621A1 (en) * 2011-06-23 2012-12-27 Rhyu Hanphil Mobile terminal
US20130207850A1 (en) * 2011-02-22 2013-08-15 Amir I. Zaghloul Nanofabric Antenna
US20130321226A1 (en) * 2012-05-29 2013-12-05 Samsung Electronics Co., Ltd. Antenna device for portable terminal
US20140152526A1 (en) * 2012-10-26 2014-06-05 Phitek Systems Limited Near field communication apparatus
US20140266945A1 (en) * 2010-08-17 2014-09-18 Amazon Technologies, Inc. Reflectors for reflecting electromagnetic energy away from a user device in a first direction
US20150042528A1 (en) * 2013-08-06 2015-02-12 Samsung Electronics Co., Ltd. Antenna device and electronic device with the same
US20150054711A1 (en) * 2013-08-20 2015-02-26 Futurewei Technologies, Inc. System and Method for a Mobile Antenna with Adjustable Resonant Frequencies and Radiation Pattern
US20150054691A1 (en) * 2013-08-23 2015-02-26 Panasonic Corporation Information processing apparatus
US20150084827A1 (en) * 2012-03-29 2015-03-26 Commonwealth Scientific And Industrial Research Organization Enhanced Connected Tiled Array Antenna
US20150094104A1 (en) * 2013-09-27 2015-04-02 BluFlux RF Technologies, LLC Portable antenna
US20150097752A1 (en) * 2013-01-06 2015-04-09 Huawei Technologies Co., Ltd. Printed Circuit Board Antenna and Printed Circuit Board
US20150162656A1 (en) * 2012-06-11 2015-06-11 University Of Florida Research Foundation, Inc. Antennas for small satellites
US20150171524A1 (en) * 2006-06-08 2015-06-18 Fractus, S.A. Distributed Antenna System Robust to Human Body Loading Effects
US20150180113A1 (en) * 2013-12-23 2015-06-25 Chiun Mai Communication Systems, Inc. Antenna structure and wireless communication device using same
US20150244061A1 (en) * 2013-06-27 2015-08-27 Roustem Galeev Wireless Electronic Devices with Metal Perimeter Portions Including a Plurality of Antennas
US20150249286A1 (en) * 2014-02-28 2015-09-03 Korea Institute Of Science And Technology Broadband antenna equipped with ferrite member
US20150249289A1 (en) * 2012-09-17 2015-09-03 Emw Co., Ltd. Metamaterial antenna
US20150255870A1 (en) * 2014-03-07 2015-09-10 Nippon Pillar Packing Co., Ltd. Antenna
US20150263411A1 (en) * 2014-03-12 2015-09-17 Brother Kogyo Kabushiki Kaisha Image Forming Apparatus Having Wireless Communication Device
US20150263433A1 (en) * 2014-03-17 2015-09-17 John R. Sanford Compact radio frequency lenses
US20150270622A1 (en) * 2014-03-20 2015-09-24 Canon Kabushiki Kaisha Antenna device
US20150279554A1 (en) * 2012-10-10 2015-10-01 Dexerials Corporation Composite coil module, and portable apparatus
US20150295323A1 (en) * 2014-04-14 2015-10-15 Javier Alberto Garcia Circular loop crossed elements omnidirectional antenna
US20150349418A1 (en) * 2012-12-21 2015-12-03 Drexel University Wide band reconfigurable planar antenna with omnidirectional and directional radiation patterns
US20160036126A1 (en) * 2014-07-31 2016-02-04 Mediatek Inc. Matching circuit for antenna and associated method
US20160049731A1 (en) * 2013-04-05 2016-02-18 Teijin Limited Antenna device
US9293828B2 (en) 2013-03-27 2016-03-22 Apple Inc. Antenna system with tuning from coupled antenna
US20160093946A1 (en) * 2014-09-29 2016-03-31 John William Richeson Interlaced Element UHF/VHF/FM Antenna
CN105492992A (en) * 2013-09-03 2016-04-13 索尼公司 Portable terminal
US20160104935A1 (en) * 2014-10-14 2016-04-14 Mediatek Inc. Antenna structure
US20160149299A1 (en) * 2014-11-25 2016-05-26 Skycross, Inc. Multiband antenna structure
US20160197395A1 (en) * 2015-01-07 2016-07-07 Galtronics Corporations Ltd. Compact antenna structure
US20160261050A1 (en) * 2015-03-06 2016-09-08 King Fahd University Of Petroleum And Minerals Cognitive radio antenna assembly
US9444130B2 (en) 2013-04-10 2016-09-13 Apple Inc. Antenna system with return path tuning and loop element
US20160268696A1 (en) * 2015-03-12 2016-09-15 Tyco Fire & Security Gmbh Rfid antenna system with multi-axis polarization for field installation and beam steering operations
US20160276734A1 (en) * 2015-03-18 2016-09-22 Samsung Electro-Mechanics Co., Ltd. Mounting module and antenna apparatus
US20160352017A1 (en) * 2015-05-26 2016-12-01 Kyocera Corporation Tunable antenna
US20160359232A1 (en) * 2013-12-11 2016-12-08 Denso Corporation Antenna device having patch antenna
CN106229617A (en) * 2015-12-31 2016-12-14 瑞声科技(新加坡)有限公司 The antenna structure of mobile electronic device
US20160365628A1 (en) * 2015-06-09 2016-12-15 Canon Kabushiki Kaisha Electronic circuit board
US9559433B2 (en) 2013-03-18 2017-01-31 Apple Inc. Antenna system having two antennas and three ports
US20170047635A1 (en) * 2015-08-14 2017-02-16 Antenna79, Inc. Radiation-redirecting external case for portable communication device
US9608323B1 (en) * 2013-10-22 2017-03-28 The United States Of America, As Represented By The Secretary Of The Navy Omni-directional antenna with extended frequency range
US20170093020A1 (en) * 2015-09-29 2017-03-30 Chiun Mai Communication Systems, Inc. Antenna module and wireless communication device using same
US20170093039A1 (en) * 2015-09-30 2017-03-30 City University Of Hong Kong Antenna
US20170093044A1 (en) * 2015-09-30 2017-03-30 Microsoft Technology Licensing, Llc Capacitive-fed monopole antenna
US9640869B2 (en) * 2015-07-01 2017-05-02 WiseWear Corporation Coplanar antenna
US20170133768A1 (en) * 2012-02-07 2017-05-11 Los Alamos National Secruity, Llc. Superluminal antenna
US20170194703A1 (en) * 2015-12-30 2017-07-06 Huawei Technologies Co., Ltd. Antenna array with reduced mutual coupling effect
US20170214129A1 (en) * 2014-07-28 2017-07-27 Yokowo Co., Ltd. Vehicle Antenna Device
US20170229760A1 (en) * 2016-02-08 2017-08-10 Microsoft Technology Licensing, Llc Cover of device acting as antenna of the device
US9748638B2 (en) * 2015-10-21 2017-08-29 Acer Incorporated Electronic device
US9761954B2 (en) 2015-10-09 2017-09-12 Ubiquiti Networks, Inc. Synchronized multiple-radio antenna systems and methods
US9757938B2 (en) 2012-11-09 2017-09-12 Brother Kogyo Kabushiki Kaisha Image forming apparatus
US20170271770A1 (en) * 2015-04-16 2017-09-21 Jiangsu Hengxin Techonology Limited Corporation Patch antenna having programmable frequency and polarization
US20170365918A1 (en) * 2016-06-21 2017-12-21 Nissei Limited Substrate type antenna
US20170365919A1 (en) * 2016-06-21 2017-12-21 Axis Ab Pcb antenna
US20170373402A1 (en) * 2016-06-28 2017-12-28 Cubtek Inc. Series fed microstrip antenna structure
US20170373397A1 (en) * 2014-12-18 2017-12-28 Sharp Kabushiki Kaisha Transparent antenna and transparent antenna-attached display device
US9882267B2 (en) * 2012-06-28 2018-01-30 Murata Manufacturing Co., Ltd. Antenna device and communication terminal device
US20180040948A1 (en) * 2015-02-26 2018-02-08 Kathrein-Werke Kg Radome and associated mobile communications antenna, and method for producing the radome or the mobile communications antenna
US9900453B2 (en) 2012-04-25 2018-02-20 Brother Kogyo Kabushiki Kaisha Image forming apparatus
US9904816B1 (en) * 2011-02-21 2018-02-27 Proxense, Llc Implementation of a proximity-based system for object tracking and automatic application initialization
US20180083340A1 (en) * 2016-02-18 2018-03-22 Panasonic Intellectual Property Management Co., Ltd. Antenna unit and electronic device
US20180109000A1 (en) * 2016-10-13 2018-04-19 Delphi Technologies, Inc. Meander-type, frequency-scanned antenna with reduced beam squint for an automated vehicle radar system
US20180115051A1 (en) * 2016-10-21 2018-04-26 Echostar Technologies L.L.C. Rf antenna arrangement configured to be a part of a lid to an apparatus
US20180123236A1 (en) * 2015-05-04 2018-05-03 Te Connectivity Nederland Bv Antenna System and Antenna Module With a Parasitic Element For Radiation Pattern Improvements
US20180159225A1 (en) * 2013-05-23 2018-06-07 Duracell U.S. Operations, Inc. Omni-directional antenna for a cylindrical body
US20180166775A1 (en) * 2016-12-12 2018-06-14 AMI Research & Development, LLC Am/fm directional antenna array for vehicle
US10008779B2 (en) 2013-12-11 2018-06-26 Nuvotronics, Inc Dielectric-free metal-only dipole-coupled radiating array aperture with wide field of view
US20180183149A1 (en) * 2016-12-28 2018-06-28 Fujitsu Limited Antenna apparatus and electronic device
US20180198198A1 (en) * 2017-01-11 2018-07-12 Denso Ten Limited Microstrip antenna
US20180205153A1 (en) * 2017-01-13 2018-07-19 The Florida International University Board Of Trustees Origami-folded antennas and methods for making the same
US20180212474A1 (en) * 2017-01-24 2018-07-26 Energous Corporation Microstrip antennas for wireless power transmitters
US20180277924A1 (en) * 2016-06-03 2018-09-27 Mazda Motor Corporation Glass antenna
US20180342780A1 (en) * 2017-05-29 2018-11-29 Naohiro Itoh Antenna device and method for producing antenna device
US20180351262A1 (en) * 2017-05-30 2018-12-06 Movandi Corporation Three-dimensional antenna array module
US20180358692A1 (en) * 2015-12-10 2018-12-13 Alcatel-Lucent Shanghai Bell Co., Ltd Low band dipole and multi-band multi-port antenna arrangement
US20180366814A1 (en) * 2014-02-12 2018-12-20 Huawei Device (Dongguan) Co., Ltd. Antenna and Mobile Terminal
US10164332B2 (en) 2014-10-14 2018-12-25 Ubiquiti Networks, Inc. Multi-sector antennas
US20190006761A1 (en) * 2011-05-24 2019-01-03 Lenovo (Singapore) Pte. Ltd. Antenna for a portable computer
US20190006755A1 (en) * 2017-07-03 2019-01-03 Compal Electronics, Inc. Multi-band antenna
US20190020112A1 (en) * 2017-01-22 2019-01-17 Huawei Technologies Co., Ltd. Dual-band antenna
US10184988B2 (en) 2012-12-27 2019-01-22 Duracell U.S. Operations, Inc. Remote sensing of remaining battery capacity using on-battery circuitry
US20190036219A1 (en) * 2016-01-22 2019-01-31 Airgain Incorporated Multi-element antenna for multiple bands of operation and method therefor
US20190044233A1 (en) * 2016-03-22 2019-02-07 Yamaha Corporation Antenna
US20190051968A1 (en) * 2016-03-29 2019-02-14 Fujikura Ltd. Film antenna and antenna device
US20190058255A1 (en) * 2017-08-18 2019-02-21 Unictron Technologies Corporation Antenna device capable of generating specific radiation pattern
US20190067797A1 (en) * 2017-08-30 2019-02-28 Lg Electronics Inc. Mobile terminal
US20190074594A1 (en) * 2016-05-16 2019-03-07 Motorola Solutions, Inc Dual contra-wound helical antenna for a communication device
US20190074591A1 (en) * 2015-01-22 2019-03-07 Cardiac Pacemakers, Inc. No-matching-circuit multi-band diversity antenna system for medical external-communications
US20190109387A1 (en) * 2017-10-11 2019-04-11 Wispry, Inc. Collocated end-fire antenna and low-frequency antenna systems, devices, and methods
US20190123445A1 (en) * 2017-10-23 2019-04-25 Pegatron Corporation Electronic device
US10276934B2 (en) * 2017-03-02 2019-04-30 Wistron Neweb Corporation Antenna structure
US20190131707A1 (en) * 2017-10-31 2019-05-02 Communication Components Antenna Inc. Antenna array with abfn circuitry
US10284268B2 (en) 2015-02-23 2019-05-07 Ubiquiti Networks, Inc. Radio apparatuses for long-range communication of radio-frequency information
US10297875B2 (en) 2015-09-01 2019-05-21 Duracell U.S. Operations, Inc. Battery including an on-cell indicator
US10297905B2 (en) * 2017-08-22 2019-05-21 Quanta Computer Inc. Mobile device
US10320055B2 (en) 2017-04-28 2019-06-11 DISH Technologies L.L.C. Radio frequency antenna for short range communications
US10355339B2 (en) 2013-03-18 2019-07-16 Apple Inc. Tunable antenna with slot-based parasitic element
US10355534B2 (en) 2016-12-12 2019-07-16 Energous Corporation Integrated circuit for managing wireless power transmitting devices
US10355363B2 (en) * 2013-03-14 2019-07-16 Ethertronics, Inc. Antenna-like matching component
US10381880B2 (en) 2014-07-21 2019-08-13 Energous Corporation Integrated antenna structure arrays for wireless power transmission
US10389161B2 (en) * 2017-03-15 2019-08-20 Energous Corporation Surface mount dielectric antennas for wireless power transmitters
US10411353B2 (en) * 2014-12-18 2019-09-10 Sharp Kabushiki Kaisha Transparent antenna and transparent antenna-equipped display device
US10416309B2 (en) 2013-06-21 2019-09-17 Duracell U.S. Operations, Inc. Systems and methods for remotely determining a battery characteristic
US10431896B2 (en) 2015-12-16 2019-10-01 Cubic Corporation Multiband antenna with phase-center co-allocated feed
US10439448B2 (en) 2014-08-21 2019-10-08 Energous Corporation Systems and methods for automatically testing the communication between wireless power transmitter and wireless power receiver
US10483634B2 (en) 2016-11-01 2019-11-19 Duracell U.S. Operations, Inc. Positive battery terminal antenna ground plane
US10483768B2 (en) 2015-09-16 2019-11-19 Energous Corporation Systems and methods of object detection using one or more sensors in wireless power charging systems
US10490897B1 (en) * 2014-12-22 2019-11-26 The Charles Stark Draper Laboratory, Inc. Frequency selective surface antenna element
US10490346B2 (en) 2014-07-21 2019-11-26 Energous Corporation Antenna structures having planar inverted F-antenna that surrounds an artificial magnetic conductor cell
US10491029B2 (en) 2015-12-24 2019-11-26 Energous Corporation Antenna with electromagnetic band gap ground plane and dipole antennas for wireless power transfer
US10498144B2 (en) 2013-08-06 2019-12-03 Energous Corporation Systems and methods for wirelessly delivering power to electronic devices in response to commands received at a wireless power transmitter
US20190372635A1 (en) * 2018-05-29 2019-12-05 Beijing Xiaomi Mobile Solftware Co., Ltd. Electronic device and antenna component thereof
CN110546815A (en) * 2017-04-24 2019-12-06 株式会社电装 Antenna device
US10511097B2 (en) 2017-05-12 2019-12-17 Energous Corporation Near-field antennas for accumulating energy at a near-field distance with minimal far-field gain
US10511196B2 (en) 2015-11-02 2019-12-17 Energous Corporation Slot antenna with orthogonally positioned slot segments for receiving electromagnetic waves having different polarizations
US10516289B2 (en) 2015-12-24 2019-12-24 Energous Corportion Unit cell of a wireless power transmitter for wireless power charging
US10516301B2 (en) 2014-05-01 2019-12-24 Energous Corporation System and methods for using sound waves to wirelessly deliver power to electronic devices
US10523058B2 (en) 2013-07-11 2019-12-31 Energous Corporation Wireless charging transmitters that use sensor data to adjust transmission of power waves
US10523033B2 (en) 2015-09-15 2019-12-31 Energous Corporation Receiver devices configured to determine location within a transmission field
US10554052B2 (en) 2014-07-14 2020-02-04 Energous Corporation Systems and methods for determining when to transmit power waves to a wireless power receiver
USD876403S1 (en) * 2019-02-04 2020-02-25 The Antenna Company Antenna
USD876404S1 (en) * 2019-02-04 2020-02-25 The Antenna Company Antenna
US10594165B2 (en) 2015-11-02 2020-03-17 Energous Corporation Stamped three-dimensional antenna
US10608293B2 (en) 2016-11-01 2020-03-31 Duracell U.S. Operations, Inc. Dual sided reusable battery indicator
US10615647B2 (en) 2018-02-02 2020-04-07 Energous Corporation Systems and methods for detecting wireless power receivers and other objects at a near-field charging pad
US20200136241A1 (en) * 2018-10-29 2020-04-30 Starkey Laboratories, Inc. Hearing device incorporating a primary antenna in conjunction with a chip antenna
US10680319B2 (en) 2017-01-06 2020-06-09 Energous Corporation Devices and methods for reducing mutual coupling effects in wireless power transmission systems
US20200194891A1 (en) * 2015-10-30 2020-06-18 Panasonic Intellectual Property Management Co., Ltd. Electronic apparatus
US10698989B2 (en) 2004-12-20 2020-06-30 Proxense, Llc Biometric personal data key (PDK) authentication
US10714984B2 (en) 2017-10-10 2020-07-14 Energous Corporation Systems, methods, and devices for using a battery as an antenna for receiving wirelessly delivered power from radio frequency power waves
US10734717B2 (en) 2015-10-13 2020-08-04 Energous Corporation 3D ceramic mold antenna
US10764044B1 (en) 2006-05-05 2020-09-01 Proxense, Llc Personal digital key initialization and registration for secure transactions
US10769939B2 (en) 2007-11-09 2020-09-08 Proxense, Llc Proximity-sensor supporting multiple application services
US10770796B2 (en) * 2018-09-24 2020-09-08 Mitsumi Electric Co., Ltd. Antenna device and method for manufacturing antenna device
US10778041B2 (en) 2015-09-16 2020-09-15 Energous Corporation Systems and methods for generating power waves in a wireless power transmission system
US10784587B2 (en) * 2016-06-13 2020-09-22 Lapis Semiconductor Co., Ltd. Semiconductor device, communication system, and method of manufacturing semiconductor device
US10818979B2 (en) 2016-11-01 2020-10-27 Duracell U.S. Operations, Inc. Single sided reusable battery indicator
US10848853B2 (en) 2017-06-23 2020-11-24 Energous Corporation Systems, methods, and devices for utilizing a wire of a sound-producing device as an antenna for receipt of wirelessly delivered power
US10909229B2 (en) 2013-05-10 2021-02-02 Proxense, Llc Secure element as a digital pocket
US10916856B1 (en) * 2019-10-04 2021-02-09 Garmin Switzerland Gmbh Dual band quadrifilar helix antenna
US10923954B2 (en) 2016-11-03 2021-02-16 Energous Corporation Wireless power receiver with a synchronous rectifier
US10943471B1 (en) 2006-11-13 2021-03-09 Proxense, Llc Biometric authentication using proximity and secure information on a user device
CN112563728A (en) * 2019-09-26 2021-03-26 苹果公司 Millimeter wave antenna with successively stacked radiating elements
US10964980B2 (en) 2014-05-30 2021-03-30 Duracell U.S. Operations, Inc. Indicator circuit decoupled from a ground plane
US10965164B2 (en) 2012-07-06 2021-03-30 Energous Corporation Systems and methods of wirelessly delivering power to a receiver device
US10971769B2 (en) 2016-11-01 2021-04-06 Duracell U.S. Operations, Inc. Reusable battery indicator with electrical lock and key
US10971251B1 (en) 2008-02-14 2021-04-06 Proxense, Llc Proximity-based healthcare management system with automatic access to private information
US10979828B2 (en) 2018-06-05 2021-04-13 Starkey Laboratories, Inc. Ear-worn electronic device incorporating chip antenna loading of antenna structure
US10985617B1 (en) 2019-12-31 2021-04-20 Energous Corporation System for wirelessly transmitting energy at a near-field distance without using beam-forming control
US10992187B2 (en) 2012-07-06 2021-04-27 Energous Corporation System and methods of using electromagnetic waves to wirelessly deliver power to electronic devices
US10992185B2 (en) 2012-07-06 2021-04-27 Energous Corporation Systems and methods of using electromagnetic waves to wirelessly deliver power to game controllers
US10991182B2 (en) * 2018-10-12 2021-04-27 Denso International America, Inc. Multi-axis polarized RF antenna assemblies for passive entry/passive start systems
US20210135351A1 (en) * 2019-11-05 2021-05-06 Samsung Electronics Co., Ltd. Antenna structure and electronic device including the same
US11011942B2 (en) 2017-03-30 2021-05-18 Energous Corporation Flat antennas having two or more resonant frequencies for use in wireless power transmission systems
US11018779B2 (en) 2019-02-06 2021-05-25 Energous Corporation Systems and methods of estimating optimal phases to use for individual antennas in an antenna array
US11018752B2 (en) 2017-07-11 2021-05-25 Silicon Valley Bank Reconfigurable and modular active repeater device
US11024891B2 (en) 2016-11-01 2021-06-01 Duracell U.S. Operations, Inc. Reusable battery indicator with lock and key mechanism
US11038265B2 (en) * 2018-11-16 2021-06-15 Electronics And Telecommunications Research Institute Semiconductor-based beamforming antenna
US11075460B2 (en) * 2019-11-29 2021-07-27 Wistron Corp. Antenna structure
USD926736S1 (en) * 2019-04-17 2021-08-03 Japan Aviation Electronics Industry, Limited Antenna
US11080378B1 (en) 2007-12-06 2021-08-03 Proxense, Llc Hybrid device having a personal digital key and receiver-decoder circuit and methods of use
US11086979B1 (en) 2007-12-19 2021-08-10 Proxense, Llc Security system and method for controlling access to computing resources
USD927468S1 (en) * 2019-04-17 2021-08-10 Japan Aviation Electronics Industry, Limited Antenna
US11095640B1 (en) 2010-03-15 2021-08-17 Proxense, Llc Proximity-based system for automatic application or data access and item tracking
US11114885B2 (en) 2015-12-24 2021-09-07 Energous Corporation Transmitter and receiver structures for near-field wireless power charging
US11120449B2 (en) 2008-04-08 2021-09-14 Proxense, Llc Automated service-based order processing
US20210305706A1 (en) * 2020-03-30 2021-09-30 Compal Electronics, Inc. Antenna device
US11139699B2 (en) 2019-09-20 2021-10-05 Energous Corporation Classifying and detecting foreign objects using a power amplifier controller integrated circuit in wireless power transmission systems
US11159057B2 (en) 2018-03-14 2021-10-26 Energous Corporation Loop antennas with selectively-activated feeds to control propagation patterns of wireless power signals
US20210351516A1 (en) 2018-12-26 2021-11-11 Movandi Corporation Lens-enhanced communication device
US11177577B2 (en) * 2017-02-21 2021-11-16 3M Innovative Properties Company Passive repeater device, microwave network, and method of designing a repeater device
US11196184B2 (en) 2017-06-20 2021-12-07 Cubic Corporation Broadband antenna array
US11206664B2 (en) 2006-01-06 2021-12-21 Proxense, Llc Wireless network synchronization of cells and client devices on a network
US11233425B2 (en) 2014-05-07 2022-01-25 Energous Corporation Wireless power receiver having an antenna assembly and charger for enhanced power delivery
US11245289B2 (en) 2016-12-12 2022-02-08 Energous Corporation Circuit for managing wireless power transmitting devices
US11258791B2 (en) 2004-03-08 2022-02-22 Proxense, Llc Linked account system using personal digital key (PDK-LAS)
US11276938B2 (en) * 2018-01-11 2022-03-15 Semtech Corporation Single layer antenna
US20220085851A1 (en) 2017-12-07 2022-03-17 Movandi Corporation Optimized multi-beam antenna array network with an extended radio frequency range
US11283191B2 (en) * 2017-12-28 2022-03-22 Murata Manufacturing Co., Ltd. Antenna array and antenna module
US11342798B2 (en) 2017-10-30 2022-05-24 Energous Corporation Systems and methods for managing coexistence of wireless-power signals and data signals operating in a same frequency band
US11342683B2 (en) 2018-04-25 2022-05-24 Cubic Corporation Microwave/millimeter-wave waveguide to circuit board connector
US11355966B2 (en) 2019-12-13 2022-06-07 Energous Corporation Charging pad with guiding contours to align an electronic device on the charging pad and efficiently transfer near-field radio-frequency energy to the electronic device
US11367948B2 (en) 2019-09-09 2022-06-21 Cubic Corporation Multi-element antenna conformed to a conical surface
US11381118B2 (en) 2019-09-20 2022-07-05 Energous Corporation Systems and methods for machine learning based foreign object detection for wireless power transmission
US11394128B2 (en) 2016-09-02 2022-07-19 Silicon Valley Bank Wireless transceiver having receive antennas and transmit antennas with orthogonal polarizations in a phased array antenna panel
US11399428B2 (en) * 2019-10-14 2022-07-26 International Business Machines Corporation PCB with substrate integrated waveguides using multi-band monopole antenna feeds for high speed communication
US11411441B2 (en) 2019-09-20 2022-08-09 Energous Corporation Systems and methods of protecting wireless power receivers using multiple rectifiers and establishing in-band communications using multiple rectifiers
US11437735B2 (en) 2018-11-14 2022-09-06 Energous Corporation Systems for receiving electromagnetic energy using antennas that are minimally affected by the presence of the human body
US11456524B2 (en) * 2016-02-19 2022-09-27 Yokowo Co., Ltd. Antenna device
US11462822B2 (en) * 2017-12-20 2022-10-04 Yokowo Co., Ltd. Antenna device for vehicle
US11462949B2 (en) 2017-05-16 2022-10-04 Wireless electrical Grid LAN, WiGL Inc Wireless charging method and system
US20220328978A1 (en) * 2019-12-26 2022-10-13 Murata Manufacturing Co., Ltd. Antenna module and communication device equipped with the same
US11502551B2 (en) 2012-07-06 2022-11-15 Energous Corporation Wirelessly charging multiple wireless-power receivers using different subsets of an antenna array to focus energy at different locations
US11515732B2 (en) 2018-06-25 2022-11-29 Energous Corporation Power wave transmission techniques to focus wirelessly delivered power at a receiving device
US11532877B2 (en) * 2017-10-30 2022-12-20 Ignion, S.L. Devices with radiating systems proximate to conductive bodies
US11539243B2 (en) 2019-01-28 2022-12-27 Energous Corporation Systems and methods for miniaturized antenna for wireless power transmissions
US11546325B2 (en) 2010-07-15 2023-01-03 Proxense, Llc Proximity-based system for object tracking
US11552401B2 (en) 2018-02-26 2023-01-10 Movandi Corporation Waveguide antenna element based beam forming phased array antenna system for millimeter wave communication
US11553481B2 (en) 2006-01-06 2023-01-10 Proxense, Llc Wireless network synchronization of cells and client devices on a network
US20230051891A1 (en) 2018-02-26 2023-02-16 Movandi Corporation Waveguide antenna element based beam forming phased array antenna system for millimeter wave communication
US11637664B2 (en) 2011-10-17 2023-04-25 Golba Llc Method and system for a repeater network that utilizes distributed transceivers with array processing
US11659409B2 (en) 2017-05-30 2023-05-23 Movandi Corporation Non-line-of-sight (NLOS) coverage for millimeter wave communication
US11658378B2 (en) 2019-10-14 2023-05-23 International Business Machines Corporation Vertically transitioning between substrate integrated waveguides (SIWs) within a multilayered printed circuit board (PCB)
US11664582B2 (en) 2016-11-18 2023-05-30 Movandi Corporation Phased array antenna panel having reduced passive loss of received signals
US11677450B2 (en) 2017-12-08 2023-06-13 Movandi Corporation Signal cancellation in radio frequency (RF) device network
US20230198164A1 (en) * 2016-09-09 2023-06-22 Samsung Electronics Co., Ltd. Antenna array
US11714184B2 (en) 2018-10-12 2023-08-01 Denso International America, Inc. Up-sampling and cross-correlation for time of arrival determinations in passive entry/passive start systems
US11721910B2 (en) 2018-12-26 2023-08-08 Movandi Corporation Lens-enhanced communication device
US11735804B2 (en) * 2020-05-11 2023-08-22 Qualcomm Incorporated Multi-core broadband PCB antenna
US11742895B2 (en) 2017-12-08 2023-08-29 Movandi Corporation Controlled power transmission in radio frequency (RF) device network
US11764460B2 (en) * 2020-06-05 2023-09-19 Anhui Huami Information Technology Co., Ltd. Wearable devices
US11799324B2 (en) 2020-04-13 2023-10-24 Energous Corporation Wireless-power transmitting device for creating a uniform near-field charging area
US11811989B2 (en) 2012-04-25 2023-11-07 Brother Kogyo Kabushiki Kaisha Image forming apparatus including antenna in cover
US11831361B2 (en) 2019-09-20 2023-11-28 Energous Corporation Systems and methods for machine learning based foreign object detection for wireless power transmission
US11837754B2 (en) 2020-12-30 2023-12-05 Duracell U.S. Operations, Inc. Magnetic battery cell connection mechanism
US11863001B2 (en) 2015-12-24 2024-01-02 Energous Corporation Near-field antenna for wireless power transmission with antenna elements that follow meandering patterns
US11916398B2 (en) 2021-12-29 2024-02-27 Energous Corporation Small form-factor devices with integrated and modular harvesting receivers, and shelving-mounted wireless-power transmitters for use therewith
US11973271B2 (en) 2022-04-08 2024-04-30 Ubiquiti Inc. Synchronized multiple-radio antenna systems and methods

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4623272B2 (en) * 2004-09-02 2011-02-02 ミツミ電機株式会社 Antenna device
US8051226B2 (en) 2008-06-13 2011-11-01 Freescale Semiconductor, Inc. Circular buffer support in a single instruction multiple data (SIMD) data processor
US10243251B2 (en) * 2015-07-31 2019-03-26 Agc Automotive Americas R&D, Inc. Multi-band antenna for a window assembly
CN106611896A (en) * 2015-10-23 2017-05-03 富港电子(昆山)有限公司 Antenna device
CN108511890A (en) * 2018-02-06 2018-09-07 深圳市摩尔环宇通信技术有限公司 A kind of 5G multi-band mobile phone antennas
JP7216576B2 (en) * 2019-03-05 2023-02-01 日本航空電子工業株式会社 antenna
JP7196007B2 (en) 2019-04-17 2022-12-26 日本航空電子工業株式会社 antenna
JP7196008B2 (en) 2019-04-17 2022-12-26 日本航空電子工業株式会社 antenna
US11183774B2 (en) * 2019-05-31 2021-11-23 The Mitre Corporation High frequency system using a circular array
JP7414414B2 (en) 2019-06-27 2024-01-16 日本航空電子工業株式会社 antenna
JP7414415B2 (en) 2019-06-27 2024-01-16 日本航空電子工業株式会社 Intermediate products for antennas and opposing parts used for them
CN112701457A (en) * 2020-12-14 2021-04-23 昆山睿翔讯通通信技术有限公司 Color antenna and manufacturing method thereof

Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838429A (en) 1973-08-03 1974-09-24 Us Army Miniaturized transmission line top loaded monopole antenna
US3925784A (en) 1971-10-27 1975-12-09 Radiation Inc Antenna arrays of internally phased elements
US4495503A (en) 1982-02-19 1985-01-22 Morman William H Slow wave antenna
US4598276A (en) 1983-11-16 1986-07-01 Minnesota Mining And Manufacturing Company Distributed capacitance LC resonant circuit
US5313216A (en) 1991-05-03 1994-05-17 Georgia Tech Research Corporation Multioctave microstrip antenna
US5608417A (en) 1994-09-30 1997-03-04 Palomar Technologies Corporation RF transponder system with parallel resonant interrogation series resonant response
US5790080A (en) 1995-02-17 1998-08-04 Lockheed Sanders, Inc. Meander line loaded antenna
US5926139A (en) * 1997-07-02 1999-07-20 Lucent Technologies Inc. Planar dual frequency band antenna
US6064351A (en) 1997-03-05 2000-05-16 Murata Manufacturing Co., Ltd. Chip antenna and a method for adjusting frequency of the same
US6137453A (en) 1998-11-19 2000-10-24 Wang Electro-Opto Corporation Broadband miniaturized slow-wave antenna
US6166694A (en) 1998-07-09 2000-12-26 Telefonaktiebolaget Lm Ericsson (Publ) Printed twin spiral dual band antenna
US6353420B1 (en) 1999-04-28 2002-03-05 Amerasia International Technology, Inc. Wireless article including a plural-turn loop antenna
US6459413B1 (en) * 2001-01-10 2002-10-01 Industrial Technology Research Institute Multi-frequency band antenna
US6476769B1 (en) 2001-09-19 2002-11-05 Nokia Corporation Internal multi-band antenna
US6480158B2 (en) * 2000-05-31 2002-11-12 Bae Systems Information And Electronic Systems Integration Inc. Narrow-band, crossed-element, offset-tuned dual band, dual mode meander line loaded antenna
US6489925B2 (en) 2000-08-22 2002-12-03 Skycross, Inc. Low profile, high gain frequency tunable variable impedance transmission line loaded antenna
US6492953B2 (en) 2000-05-31 2002-12-10 Bae Systems Information And Electronic Systems Integration Inc. Wideband meander line loaded antenna
US6573869B2 (en) 2001-03-21 2003-06-03 Amphenol - T&M Antennas Multiband PIFA antenna for portable devices
US6590543B1 (en) 2002-10-04 2003-07-08 Bae Systems Information And Electronic Systems Integration Inc Double monopole meanderline loaded antenna
US6650295B2 (en) 2002-01-28 2003-11-18 Nokia Corporation Tunable antenna for wireless communication terminals
US6707428B2 (en) * 2001-05-25 2004-03-16 Nokia Corporation Antenna
US6717548B2 (en) * 2001-08-02 2004-04-06 Auden Techno Corp. Dual- or multi-frequency planar inverted F-antenna
US6741214B1 (en) * 2002-11-06 2004-05-25 Centurion Wireless Technologies, Inc. Planar Inverted-F-Antenna (PIFA) having a slotted radiating element providing global cellular and GPS-bluetooth frequency response

Patent Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925784A (en) 1971-10-27 1975-12-09 Radiation Inc Antenna arrays of internally phased elements
US3838429A (en) 1973-08-03 1974-09-24 Us Army Miniaturized transmission line top loaded monopole antenna
US4495503A (en) 1982-02-19 1985-01-22 Morman William H Slow wave antenna
US4598276A (en) 1983-11-16 1986-07-01 Minnesota Mining And Manufacturing Company Distributed capacitance LC resonant circuit
US5313216A (en) 1991-05-03 1994-05-17 Georgia Tech Research Corporation Multioctave microstrip antenna
US5608417A (en) 1994-09-30 1997-03-04 Palomar Technologies Corporation RF transponder system with parallel resonant interrogation series resonant response
US5790080A (en) 1995-02-17 1998-08-04 Lockheed Sanders, Inc. Meander line loaded antenna
US6064351A (en) 1997-03-05 2000-05-16 Murata Manufacturing Co., Ltd. Chip antenna and a method for adjusting frequency of the same
US5926139A (en) * 1997-07-02 1999-07-20 Lucent Technologies Inc. Planar dual frequency band antenna
US6166694A (en) 1998-07-09 2000-12-26 Telefonaktiebolaget Lm Ericsson (Publ) Printed twin spiral dual band antenna
US6137453A (en) 1998-11-19 2000-10-24 Wang Electro-Opto Corporation Broadband miniaturized slow-wave antenna
US6353420B1 (en) 1999-04-28 2002-03-05 Amerasia International Technology, Inc. Wireless article including a plural-turn loop antenna
US6480158B2 (en) * 2000-05-31 2002-11-12 Bae Systems Information And Electronic Systems Integration Inc. Narrow-band, crossed-element, offset-tuned dual band, dual mode meander line loaded antenna
US6492953B2 (en) 2000-05-31 2002-12-10 Bae Systems Information And Electronic Systems Integration Inc. Wideband meander line loaded antenna
US6489925B2 (en) 2000-08-22 2002-12-03 Skycross, Inc. Low profile, high gain frequency tunable variable impedance transmission line loaded antenna
US6459413B1 (en) * 2001-01-10 2002-10-01 Industrial Technology Research Institute Multi-frequency band antenna
US6573869B2 (en) 2001-03-21 2003-06-03 Amphenol - T&M Antennas Multiband PIFA antenna for portable devices
US6707428B2 (en) * 2001-05-25 2004-03-16 Nokia Corporation Antenna
US6717548B2 (en) * 2001-08-02 2004-04-06 Auden Techno Corp. Dual- or multi-frequency planar inverted F-antenna
US6476769B1 (en) 2001-09-19 2002-11-05 Nokia Corporation Internal multi-band antenna
US6650295B2 (en) 2002-01-28 2003-11-18 Nokia Corporation Tunable antenna for wireless communication terminals
US6590543B1 (en) 2002-10-04 2003-07-08 Bae Systems Information And Electronic Systems Integration Inc Double monopole meanderline loaded antenna
US6741214B1 (en) * 2002-11-06 2004-05-25 Centurion Wireless Technologies, Inc. Planar Inverted-F-Antenna (PIFA) having a slotted radiating element providing global cellular and GPS-bluetooth frequency response

Cited By (421)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100127950A1 (en) * 2001-04-11 2010-05-27 Gregory Poilasne Reconfigurable radiation densensitivity bracket systems and methods
US8237620B2 (en) * 2001-04-11 2012-08-07 Kyocera Corporation Reconfigurable radiation densensitivity bracket systems and methods
US20060208956A1 (en) * 2003-11-24 2006-09-21 Emanoil Surducan Modified printed dipole antennas for wireless multi-band communication systems
US11258791B2 (en) 2004-03-08 2022-02-22 Proxense, Llc Linked account system using personal digital key (PDK-LAS)
US11922395B2 (en) 2004-03-08 2024-03-05 Proxense, Llc Linked account system using personal digital key (PDK-LAS)
US10698989B2 (en) 2004-12-20 2020-06-30 Proxense, Llc Biometric personal data key (PDK) authentication
US11206664B2 (en) 2006-01-06 2021-12-21 Proxense, Llc Wireless network synchronization of cells and client devices on a network
US11553481B2 (en) 2006-01-06 2023-01-10 Proxense, Llc Wireless network synchronization of cells and client devices on a network
US11219022B2 (en) 2006-01-06 2022-01-04 Proxense, Llc Wireless network synchronization of cells and client devices on a network with dynamic adjustment
US11800502B2 (en) 2006-01-06 2023-10-24 Proxense, LL Wireless network synchronization of cells and client devices on a network
US11212797B2 (en) 2006-01-06 2021-12-28 Proxense, Llc Wireless network synchronization of cells and client devices on a network with masking
US11182792B2 (en) 2006-05-05 2021-11-23 Proxense, Llc Personal digital key initialization and registration for secure transactions
US10764044B1 (en) 2006-05-05 2020-09-01 Proxense, Llc Personal digital key initialization and registration for secure transactions
US11157909B2 (en) 2006-05-05 2021-10-26 Proxense, Llc Two-level authentication for secure transactions
US11551222B2 (en) 2006-05-05 2023-01-10 Proxense, Llc Single step transaction authentication using proximity and biometric input
US20150171524A1 (en) * 2006-06-08 2015-06-18 Fractus, S.A. Distributed Antenna System Robust to Human Body Loading Effects
US10411364B2 (en) 2006-06-08 2019-09-10 Fractus Antennas, S.L. Distributed antenna system robust to human body loading effects
US10033114B2 (en) * 2006-06-08 2018-07-24 Fractus Antennas, S.L. Distributed antenna system robust to human body loading effects
US7671804B2 (en) 2006-09-05 2010-03-02 Apple Inc. Tunable antennas for handheld devices
US20080055164A1 (en) * 2006-09-05 2008-03-06 Zhijun Zhang Tunable antennas for handheld devices
US10943471B1 (en) 2006-11-13 2021-03-09 Proxense, Llc Biometric authentication using proximity and secure information on a user device
US20080266189A1 (en) * 2007-04-24 2008-10-30 Cameo Communications, Inc. Symmetrical dual-band uni-planar antenna and wireless network device having the same
US20090051595A1 (en) * 2007-08-23 2009-02-26 Research In Motion Limited Multi-band antenna, and associated methodology, for a radio communication device
US7719470B2 (en) * 2007-08-23 2010-05-18 Research In Motion Limited Multi-band antenna, and associated methodology, for a radio communication device
US10769939B2 (en) 2007-11-09 2020-09-08 Proxense, Llc Proximity-sensor supporting multiple application services
US11562644B2 (en) 2007-11-09 2023-01-24 Proxense, Llc Proximity-sensor supporting multiple application services
US11080378B1 (en) 2007-12-06 2021-08-03 Proxense, Llc Hybrid device having a personal digital key and receiver-decoder circuit and methods of use
US11086979B1 (en) 2007-12-19 2021-08-10 Proxense, Llc Security system and method for controlling access to computing resources
US11727355B2 (en) 2008-02-14 2023-08-15 Proxense, Llc Proximity-based healthcare management system with automatic access to private information
US10971251B1 (en) 2008-02-14 2021-04-06 Proxense, Llc Proximity-based healthcare management system with automatic access to private information
US11120449B2 (en) 2008-04-08 2021-09-14 Proxense, Llc Automated service-based order processing
US8009106B2 (en) * 2008-04-14 2011-08-30 Hon Hai Precision Industry Co., Ltd. Dual frequency antenna and communication system
US20090256756A1 (en) * 2008-04-14 2009-10-15 Hon Hai Precision Industry Co., Ltd. Dual frequency antenna and communication system
US11095640B1 (en) 2010-03-15 2021-08-17 Proxense, Llc Proximity-based system for automatic application or data access and item tracking
US11546325B2 (en) 2010-07-15 2023-01-03 Proxense, Llc Proximity-based system for object tracking
US9570813B2 (en) * 2010-08-17 2017-02-14 Amazon Technologies, Inc. Reflectors for reflecting electromagnetic energy away from a user device in a first direction
US20140266945A1 (en) * 2010-08-17 2014-09-18 Amazon Technologies, Inc. Reflectors for reflecting electromagnetic energy away from a user device in a first direction
US11669701B2 (en) 2011-02-21 2023-06-06 Proxense, Llc Implementation of a proximity-based system for object tracking and automatic application initialization
US11113482B1 (en) 2011-02-21 2021-09-07 Proxense, Llc Implementation of a proximity-based system for object tracking and automatic application initialization
US9904816B1 (en) * 2011-02-21 2018-02-27 Proxense, Llc Implementation of a proximity-based system for object tracking and automatic application initialization
US10217339B1 (en) 2011-02-21 2019-02-26 Proxense, Llc Proximity-based system for object tracking and automatic application initialization
US11132882B1 (en) 2011-02-21 2021-09-28 Proxense, Llc Proximity-based system for object tracking and automatic application initialization
US10229294B1 (en) 2011-02-21 2019-03-12 Proxense, Llc Implementation of a proximity-based system for object tracking and automatic application initialization
US10122072B2 (en) * 2011-02-22 2018-11-06 The United States Of America As Represented By The Secretary Of The Army Nanofabric antenna
US20130207850A1 (en) * 2011-02-22 2013-08-15 Amir I. Zaghloul Nanofabric Antenna
US20190006761A1 (en) * 2011-05-24 2019-01-03 Lenovo (Singapore) Pte. Ltd. Antenna for a portable computer
US20120313819A1 (en) * 2011-06-13 2012-12-13 Chia-Tien Li Active Antenna and Electronic Device
US9196963B2 (en) * 2011-06-23 2015-11-24 Lg Electronics Inc. Mobile terminal
US20120327621A1 (en) * 2011-06-23 2012-12-27 Rhyu Hanphil Mobile terminal
US11652584B2 (en) 2011-10-17 2023-05-16 Golba Llc Method and system for a repeater network that utilizes distributed transceivers with array processing
US11799601B2 (en) 2011-10-17 2023-10-24 Golba Llc Method and system for a repeater network that utilizes distributed transceivers with array processing
US11637664B2 (en) 2011-10-17 2023-04-25 Golba Llc Method and system for a repeater network that utilizes distributed transceivers with array processing
US11838226B2 (en) 2011-10-17 2023-12-05 Golba Llc Method and system for a repeater network that utilizes distributed transceivers with array processing
US9948011B2 (en) * 2012-02-07 2018-04-17 Los Alamos National Security, Llc Superluminal antenna
US20170133768A1 (en) * 2012-02-07 2017-05-11 Los Alamos National Secruity, Llc. Superluminal antenna
US10193230B2 (en) * 2012-03-29 2019-01-29 Commonwealth Scientific And Industrial Research Organisation Enhanced connected tiled array antenna
US20150084827A1 (en) * 2012-03-29 2015-03-26 Commonwealth Scientific And Industrial Research Organization Enhanced Connected Tiled Array Antenna
US9900453B2 (en) 2012-04-25 2018-02-20 Brother Kogyo Kabushiki Kaisha Image forming apparatus
US11811989B2 (en) 2012-04-25 2023-11-07 Brother Kogyo Kabushiki Kaisha Image forming apparatus including antenna in cover
US10778857B2 (en) 2012-04-25 2020-09-15 Brother Kogyo Kabushiki Kaisha Image forming apparatus
US9882265B2 (en) * 2012-05-29 2018-01-30 Samsung Electronics Co., Ltd. Antenna device for portable terminal
US20130321226A1 (en) * 2012-05-29 2013-12-05 Samsung Electronics Co., Ltd. Antenna device for portable terminal
US20150162656A1 (en) * 2012-06-11 2015-06-11 University Of Florida Research Foundation, Inc. Antennas for small satellites
US9966658B2 (en) * 2012-06-11 2018-05-08 University Of Florida Research Foundation, Inc. Antennas for small satellites
US9882267B2 (en) * 2012-06-28 2018-01-30 Murata Manufacturing Co., Ltd. Antenna device and communication terminal device
US10965164B2 (en) 2012-07-06 2021-03-30 Energous Corporation Systems and methods of wirelessly delivering power to a receiver device
US11652369B2 (en) 2012-07-06 2023-05-16 Energous Corporation Systems and methods of determining a location of a receiver device and wirelessly delivering power to a focus region associated with the receiver device
US10992185B2 (en) 2012-07-06 2021-04-27 Energous Corporation Systems and methods of using electromagnetic waves to wirelessly deliver power to game controllers
US11502551B2 (en) 2012-07-06 2022-11-15 Energous Corporation Wirelessly charging multiple wireless-power receivers using different subsets of an antenna array to focus energy at different locations
US10992187B2 (en) 2012-07-06 2021-04-27 Energous Corporation System and methods of using electromagnetic waves to wirelessly deliver power to electronic devices
US9837720B2 (en) * 2012-09-17 2017-12-05 Emw Co., Ltd. Metamaterial antenna
US20150249289A1 (en) * 2012-09-17 2015-09-03 Emw Co., Ltd. Metamaterial antenna
US20150279554A1 (en) * 2012-10-10 2015-10-01 Dexerials Corporation Composite coil module, and portable apparatus
US20140152526A1 (en) * 2012-10-26 2014-06-05 Phitek Systems Limited Near field communication apparatus
US9757938B2 (en) 2012-11-09 2017-09-12 Brother Kogyo Kabushiki Kaisha Image forming apparatus
US10038240B2 (en) * 2012-12-21 2018-07-31 Drexel University Wide band reconfigurable planar antenna with omnidirectional and directional radiation patterns
US20150349418A1 (en) * 2012-12-21 2015-12-03 Drexel University Wide band reconfigurable planar antenna with omnidirectional and directional radiation patterns
US10184988B2 (en) 2012-12-27 2019-01-22 Duracell U.S. Operations, Inc. Remote sensing of remaining battery capacity using on-battery circuitry
US10698032B2 (en) 2012-12-27 2020-06-30 Duracell U.S. Operations, Inc. Remote sensing of remaining battery capacity using on-battery circuitry
US9825366B2 (en) * 2013-01-06 2017-11-21 Huawei Technologies Co., Ltd. Printed circuit board antenna and printed circuit board
US20150097752A1 (en) * 2013-01-06 2015-04-09 Huawei Technologies Co., Ltd. Printed Circuit Board Antenna and Printed Circuit Board
US11710903B2 (en) 2013-03-14 2023-07-25 KYOCERA AVX Components (San Diego), Inc. Antenna-like matching component
US11171422B2 (en) 2013-03-14 2021-11-09 Ethertronics, Inc. Antenna-like matching component
US10355363B2 (en) * 2013-03-14 2019-07-16 Ethertronics, Inc. Antenna-like matching component
US9559433B2 (en) 2013-03-18 2017-01-31 Apple Inc. Antenna system having two antennas and three ports
US10355339B2 (en) 2013-03-18 2019-07-16 Apple Inc. Tunable antenna with slot-based parasitic element
US9293828B2 (en) 2013-03-27 2016-03-22 Apple Inc. Antenna system with tuning from coupled antenna
US20160049731A1 (en) * 2013-04-05 2016-02-18 Teijin Limited Antenna device
US9444130B2 (en) 2013-04-10 2016-09-13 Apple Inc. Antenna system with return path tuning and loop element
US10909229B2 (en) 2013-05-10 2021-02-02 Proxense, Llc Secure element as a digital pocket
US11914695B2 (en) 2013-05-10 2024-02-27 Proxense, Llc Secure element as a digital pocket
US10916850B2 (en) * 2013-05-23 2021-02-09 Duracell U.S. Operations, Inc. Omni-directional antenna for a cylindrical body
US20180159225A1 (en) * 2013-05-23 2018-06-07 Duracell U.S. Operations, Inc. Omni-directional antenna for a cylindrical body
US11740291B2 (en) 2013-06-21 2023-08-29 Duracell U.S. Operations, Inc. Systems and methods for remotely determining a battery characteristic
US10859705B2 (en) 2013-06-21 2020-12-08 Duracell U.S. Operations, Inc. Systems and methods for remotely determining a battery characteristic
US11307259B2 (en) 2013-06-21 2022-04-19 Duracell U.S. Operations, Inc. Systems and methods for remotely determining a battery characteristic
US10684374B2 (en) 2013-06-21 2020-06-16 Duravell U.S. Operations, Inc. Systems and methods for remotely determining a battery characteristic
US10416309B2 (en) 2013-06-21 2019-09-17 Duracell U.S. Operations, Inc. Systems and methods for remotely determining a battery characteristic
US20150244061A1 (en) * 2013-06-27 2015-08-27 Roustem Galeev Wireless Electronic Devices with Metal Perimeter Portions Including a Plurality of Antennas
US10141632B2 (en) * 2013-06-27 2018-11-27 Sony Mobile Communications Inc. Wireless electronic devices with metal perimeter portions including a plurality of antennas
US10523058B2 (en) 2013-07-11 2019-12-31 Energous Corporation Wireless charging transmitters that use sensor data to adjust transmission of power waves
US9583825B2 (en) * 2013-08-06 2017-02-28 Samsung Electronics Co., Ltd Antenna device and electronic device with the same
US10498144B2 (en) 2013-08-06 2019-12-03 Energous Corporation Systems and methods for wirelessly delivering power to electronic devices in response to commands received at a wireless power transmitter
US20150042528A1 (en) * 2013-08-06 2015-02-12 Samsung Electronics Co., Ltd. Antenna device and electronic device with the same
US10622728B2 (en) 2013-08-20 2020-04-14 Futurewei Technologies, Inc. System and method for a mobile antenna with adjustable resonant frequencies and radiation pattern
US20150054711A1 (en) * 2013-08-20 2015-02-26 Futurewei Technologies, Inc. System and Method for a Mobile Antenna with Adjustable Resonant Frequencies and Radiation Pattern
US9979096B2 (en) * 2013-08-20 2018-05-22 Futurewei Technologies, Inc. System and method for a mobile antenna with adjustable resonant frequencies and radiation pattern
US20150054691A1 (en) * 2013-08-23 2015-02-26 Panasonic Corporation Information processing apparatus
US9692105B2 (en) * 2013-08-23 2017-06-27 Panasonic Intellectual Property Management Co., Ltd. Information processing apparatus
CN105492992A (en) * 2013-09-03 2016-04-13 索尼公司 Portable terminal
CN105492992B (en) * 2013-09-03 2020-07-14 索尼公司 Mobile terminal
US9954270B2 (en) * 2013-09-03 2018-04-24 Sony Corporation Mobile terminal to prevent degradation of antenna characteristics
US20160380334A1 (en) * 2013-09-03 2016-12-29 Sony Corporation Mobile terminal
US20150094104A1 (en) * 2013-09-27 2015-04-02 BluFlux RF Technologies, LLC Portable antenna
US9843089B2 (en) * 2013-09-27 2017-12-12 BluFlux RF Technologies, LLC Portable antenna
US9608323B1 (en) * 2013-10-22 2017-03-28 The United States Of America, As Represented By The Secretary Of The Navy Omni-directional antenna with extended frequency range
US20160359232A1 (en) * 2013-12-11 2016-12-08 Denso Corporation Antenna device having patch antenna
US10008779B2 (en) 2013-12-11 2018-06-26 Nuvotronics, Inc Dielectric-free metal-only dipole-coupled radiating array aperture with wide field of view
US10153553B2 (en) * 2013-12-11 2018-12-11 Denso Corporation Antenna device having patch antenna
US10256545B2 (en) 2013-12-11 2019-04-09 Nuvotronics, Inc Dielectric-free metal-only dipole-coupled radiating array aperture with wide field of view
US9705179B2 (en) * 2013-12-23 2017-07-11 Chiun Mai Communication Systems, Inc. Antenna structure and wireless communication device using same
US20150180113A1 (en) * 2013-12-23 2015-06-25 Chiun Mai Communication Systems, Inc. Antenna structure and wireless communication device using same
US10879590B2 (en) * 2014-02-12 2020-12-29 Huawei Device Co., Ltd. Antenna and mobile terminal
US20180366814A1 (en) * 2014-02-12 2018-12-20 Huawei Device (Dongguan) Co., Ltd. Antenna and Mobile Terminal
US20150249286A1 (en) * 2014-02-28 2015-09-03 Korea Institute Of Science And Technology Broadband antenna equipped with ferrite member
US9705196B2 (en) * 2014-03-07 2017-07-11 Nippon Pillar Packing Co., Ltd Antenna
US20150255870A1 (en) * 2014-03-07 2015-09-10 Nippon Pillar Packing Co., Ltd. Antenna
US20150263411A1 (en) * 2014-03-12 2015-09-17 Brother Kogyo Kabushiki Kaisha Image Forming Apparatus Having Wireless Communication Device
US10177436B2 (en) 2014-03-12 2019-01-08 Brother Kogyo Kabushiki Kaisha Image forming apparatus having wireless communication device
US9768490B2 (en) * 2014-03-12 2017-09-19 Brother Kogyo Kabushiki Kaisha Image forming apparatus having wireless communication device
US20150263433A1 (en) * 2014-03-17 2015-09-17 John R. Sanford Compact radio frequency lenses
US9912053B2 (en) 2014-03-17 2018-03-06 Ubiquiti Networks, Inc. Array antennas having a plurality of directional beams
US10916844B2 (en) 2014-03-17 2021-02-09 Ubiquiti Inc. Array antennas having a plurality of directional beams
US11296407B2 (en) 2014-03-17 2022-04-05 Ubiqsiti Inc. Array antennas having a plurality of directional beams
US9843096B2 (en) * 2014-03-17 2017-12-12 Ubiquiti Networks, Inc. Compact radio frequency lenses
US20150270622A1 (en) * 2014-03-20 2015-09-24 Canon Kabushiki Kaisha Antenna device
US9825369B2 (en) * 2014-03-20 2017-11-21 Canon Kabushiki Kaisha Antenna device
US20150295323A1 (en) * 2014-04-14 2015-10-15 Javier Alberto Garcia Circular loop crossed elements omnidirectional antenna
US10516301B2 (en) 2014-05-01 2019-12-24 Energous Corporation System and methods for using sound waves to wirelessly deliver power to electronic devices
US11233425B2 (en) 2014-05-07 2022-01-25 Energous Corporation Wireless power receiver having an antenna assembly and charger for enhanced power delivery
US10964980B2 (en) 2014-05-30 2021-03-30 Duracell U.S. Operations, Inc. Indicator circuit decoupled from a ground plane
US10554052B2 (en) 2014-07-14 2020-02-04 Energous Corporation Systems and methods for determining when to transmit power waves to a wireless power receiver
US10490346B2 (en) 2014-07-21 2019-11-26 Energous Corporation Antenna structures having planar inverted F-antenna that surrounds an artificial magnetic conductor cell
US10381880B2 (en) 2014-07-21 2019-08-13 Energous Corporation Integrated antenna structure arrays for wireless power transmission
US10276927B2 (en) * 2014-07-28 2019-04-30 Yokowo Co., Ltd. Vehicle antenna device
CN111525242A (en) * 2014-07-28 2020-08-11 株式会社友华 Vehicle antenna device
CN111525242B (en) * 2014-07-28 2022-09-23 株式会社友华 Vehicle antenna device
US20170214129A1 (en) * 2014-07-28 2017-07-27 Yokowo Co., Ltd. Vehicle Antenna Device
US20160036126A1 (en) * 2014-07-31 2016-02-04 Mediatek Inc. Matching circuit for antenna and associated method
US9728852B2 (en) * 2014-07-31 2017-08-08 Mediatek Inc. Matching circuit for antenna and associated method
US10027029B2 (en) 2014-07-31 2018-07-17 Mediatek Inc. Matching circuit for antenna and associated method
US10439448B2 (en) 2014-08-21 2019-10-08 Energous Corporation Systems and methods for automatically testing the communication between wireless power transmitter and wireless power receiver
US20160093946A1 (en) * 2014-09-29 2016-03-31 John William Richeson Interlaced Element UHF/VHF/FM Antenna
US9627756B2 (en) * 2014-09-29 2017-04-18 John William Richeson Interlaced element UHF/VHF/FM antenna
US10164332B2 (en) 2014-10-14 2018-12-25 Ubiquiti Networks, Inc. Multi-sector antennas
US9728853B2 (en) * 2014-10-14 2017-08-08 Mediatek Inc. Antenna structure
US11303016B2 (en) 2014-10-14 2022-04-12 Ubiquiti Inc. Multi-sector antennas
US10770787B2 (en) 2014-10-14 2020-09-08 Ubiquiti Inc. Multi-sector antennas
US20160104935A1 (en) * 2014-10-14 2016-04-14 Mediatek Inc. Antenna structure
US20160149299A1 (en) * 2014-11-25 2016-05-26 Skycross, Inc. Multiband antenna structure
US20170373397A1 (en) * 2014-12-18 2017-12-28 Sharp Kabushiki Kaisha Transparent antenna and transparent antenna-attached display device
US10910718B2 (en) * 2014-12-18 2021-02-02 Sharp Kabushiki Kaisha Transparent antenna and transparent antenna-attached display device
US10411353B2 (en) * 2014-12-18 2019-09-10 Sharp Kabushiki Kaisha Transparent antenna and transparent antenna-equipped display device
US10490897B1 (en) * 2014-12-22 2019-11-26 The Charles Stark Draper Laboratory, Inc. Frequency selective surface antenna element
US10297899B2 (en) * 2015-01-07 2019-05-21 Galtronics Usa, Inc. Compact antenna structure
US20160197395A1 (en) * 2015-01-07 2016-07-07 Galtronics Corporations Ltd. Compact antenna structure
US11196164B2 (en) * 2015-01-22 2021-12-07 Cardiac Pacemakers, Inc. No-matching-circuit multi-band diversity antenna system for medical external-communications
US20190074591A1 (en) * 2015-01-22 2019-03-07 Cardiac Pacemakers, Inc. No-matching-circuit multi-band diversity antenna system for medical external-communications
US10749581B2 (en) 2015-02-23 2020-08-18 Ubiquiti Inc. Radio apparatuses for long-range communication of radio-frequency information
US10284268B2 (en) 2015-02-23 2019-05-07 Ubiquiti Networks, Inc. Radio apparatuses for long-range communication of radio-frequency information
US11336342B2 (en) 2015-02-23 2022-05-17 Ubiquiti Inc. Radio apparatuses for long-range communication of radio-frequency information
US11115089B2 (en) 2015-02-23 2021-09-07 Ubiquiti Inc. Radio apparatuses for long-range communication of radio-frequency information
US10879602B2 (en) * 2015-02-26 2020-12-29 Telefonaktiebolaget Lm Ericsson (Publ) Radome and associated mobile communications antenna, and method for producing the radome or the mobile communications antenna
US20180040948A1 (en) * 2015-02-26 2018-02-08 Kathrein-Werke Kg Radome and associated mobile communications antenna, and method for producing the radome or the mobile communications antenna
US20160261050A1 (en) * 2015-03-06 2016-09-08 King Fahd University Of Petroleum And Minerals Cognitive radio antenna assembly
US9837702B2 (en) * 2015-03-06 2017-12-05 King Fahd University Of Petroleum And Minerals Cognitive radio antenna assembly
US20160268696A1 (en) * 2015-03-12 2016-09-15 Tyco Fire & Security Gmbh Rfid antenna system with multi-axis polarization for field installation and beam steering operations
US9716323B2 (en) * 2015-03-12 2017-07-25 Tyco Fire & Security Gmbh RFID antenna system with multi-axis polarization for field installation and beam steering operations
US20160276734A1 (en) * 2015-03-18 2016-09-22 Samsung Electro-Mechanics Co., Ltd. Mounting module and antenna apparatus
CN105990652A (en) * 2015-03-18 2016-10-05 三星电机株式会社 Mounting module and antenna apparatus
CN105990652B (en) * 2015-03-18 2020-01-07 三星电机株式会社 Mounting module and antenna device
USRE49261E1 (en) * 2015-03-18 2022-10-25 Samsung Electro-Mechanics Co., Ltd. Mounting module and antenna apparatus
US9923261B2 (en) * 2015-03-18 2018-03-20 Samsung Electro-Mechanics Co., Ltd. Mounting module and antenna apparatus
US10158176B2 (en) * 2015-04-16 2018-12-18 Jiangsu Hengxin Technology Limited Corporation Patch antenna having programmable frequency and polarization
US20170271770A1 (en) * 2015-04-16 2017-09-21 Jiangsu Hengxin Techonology Limited Corporation Patch antenna having programmable frequency and polarization
US20180123236A1 (en) * 2015-05-04 2018-05-03 Te Connectivity Nederland Bv Antenna System and Antenna Module With a Parasitic Element For Radiation Pattern Improvements
US20160352017A1 (en) * 2015-05-26 2016-12-01 Kyocera Corporation Tunable antenna
US10283870B2 (en) * 2015-05-26 2019-05-07 Kyocera Corporation Tunable antenna
US10320065B2 (en) * 2015-06-09 2019-06-11 Canon Kabushiki Kaisha Electronic circuit board
US20160365628A1 (en) * 2015-06-09 2016-12-15 Canon Kabushiki Kaisha Electronic circuit board
US20170271769A1 (en) * 2015-07-01 2017-09-21 WiseWear Corporation Coplanar antenna
US10516213B2 (en) 2015-07-01 2019-12-24 Carepredict, Inc. Coplanar antenna
US9640869B2 (en) * 2015-07-01 2017-05-02 WiseWear Corporation Coplanar antenna
US20170047635A1 (en) * 2015-08-14 2017-02-16 Antenna79, Inc. Radiation-redirecting external case for portable communication device
US10090578B2 (en) * 2015-08-14 2018-10-02 Penumbra Brands, Llc Radiation-redirecting external case for portable communication device
US10297875B2 (en) 2015-09-01 2019-05-21 Duracell U.S. Operations, Inc. Battery including an on-cell indicator
US11670970B2 (en) 2015-09-15 2023-06-06 Energous Corporation Detection of object location and displacement to cause wireless-power transmission adjustments within a transmission field
US10523033B2 (en) 2015-09-15 2019-12-31 Energous Corporation Receiver devices configured to determine location within a transmission field
US10483768B2 (en) 2015-09-16 2019-11-19 Energous Corporation Systems and methods of object detection using one or more sensors in wireless power charging systems
US11777328B2 (en) 2015-09-16 2023-10-03 Energous Corporation Systems and methods for determining when to wirelessly transmit power to a location within a transmission field based on predicted specific absorption rate values at the location
US10778041B2 (en) 2015-09-16 2020-09-15 Energous Corporation Systems and methods for generating power waves in a wireless power transmission system
US9905909B2 (en) * 2015-09-29 2018-02-27 Chiun Mai Communication Systems, Inc. Antenna module and wireless communication device using same
US20170093020A1 (en) * 2015-09-29 2017-03-30 Chiun Mai Communication Systems, Inc. Antenna module and wireless communication device using same
US20170093039A1 (en) * 2015-09-30 2017-03-30 City University Of Hong Kong Antenna
US20170093044A1 (en) * 2015-09-30 2017-03-30 Microsoft Technology Licensing, Llc Capacitive-fed monopole antenna
US10109922B2 (en) * 2015-09-30 2018-10-23 Microsoft Technology Licensing, Llc Capacitive-fed monopole antenna
US9966662B2 (en) * 2015-09-30 2018-05-08 City University Of Hong Kong Antenna
US10680342B2 (en) 2015-10-09 2020-06-09 Ubiquiti Inc. Synchronized multiple-radio antenna systems and methods
US9761954B2 (en) 2015-10-09 2017-09-12 Ubiquiti Networks, Inc. Synchronized multiple-radio antenna systems and methods
US11303037B2 (en) 2015-10-09 2022-04-12 Ubiquiti Inc. Synchronized multiple-radio antenna systems and meihods
US10084238B2 (en) 2015-10-09 2018-09-25 Ubiquiti Networks, Inc. Synchronized multiple-radio antenna systems and methods
US10381739B2 (en) 2015-10-09 2019-08-13 Ubiquiti Networks, Inc. Synchronized multiple-radio antenna systems and methods
US10734717B2 (en) 2015-10-13 2020-08-04 Energous Corporation 3D ceramic mold antenna
US9748638B2 (en) * 2015-10-21 2017-08-29 Acer Incorporated Electronic device
US10938106B2 (en) * 2015-10-30 2021-03-02 Panasonic Intellectual Property Management Co., Ltd. Electronic apparatus
US20200194891A1 (en) * 2015-10-30 2020-06-18 Panasonic Intellectual Property Management Co., Ltd. Electronic apparatus
US10511196B2 (en) 2015-11-02 2019-12-17 Energous Corporation Slot antenna with orthogonally positioned slot segments for receiving electromagnetic waves having different polarizations
US10594165B2 (en) 2015-11-02 2020-03-17 Energous Corporation Stamped three-dimensional antenna
US11848492B2 (en) * 2015-12-10 2023-12-19 Rfs Technologies, Inc. Low band dipole and multi-band multi-port antenna arrangement
US20180358692A1 (en) * 2015-12-10 2018-12-13 Alcatel-Lucent Shanghai Bell Co., Ltd Low band dipole and multi-band multi-port antenna arrangement
US10431896B2 (en) 2015-12-16 2019-10-01 Cubic Corporation Multiband antenna with phase-center co-allocated feed
US11114885B2 (en) 2015-12-24 2021-09-07 Energous Corporation Transmitter and receiver structures for near-field wireless power charging
US10447093B2 (en) 2015-12-24 2019-10-15 Energous Corporation Near-field antenna for wireless power transmission with four coplanar antenna elements that each follows a respective meandering pattern
US11863001B2 (en) 2015-12-24 2024-01-02 Energous Corporation Near-field antenna for wireless power transmission with antenna elements that follow meandering patterns
US11689045B2 (en) 2015-12-24 2023-06-27 Energous Corporation Near-held wireless power transmission techniques
US10491029B2 (en) 2015-12-24 2019-11-26 Energous Corporation Antenna with electromagnetic band gap ground plane and dipole antennas for wireless power transfer
US10879740B2 (en) 2015-12-24 2020-12-29 Energous Corporation Electronic device with antenna elements that follow meandering patterns for receiving wireless power from a near-field antenna
US11451096B2 (en) 2015-12-24 2022-09-20 Energous Corporation Near-field wireless-power-transmission system that includes first and second dipole antenna elements that are switchably coupled to a power amplifier and an impedance-adjusting component
US10516289B2 (en) 2015-12-24 2019-12-24 Energous Corportion Unit cell of a wireless power transmitter for wireless power charging
US10958095B2 (en) 2015-12-24 2021-03-23 Energous Corporation Near-field wireless power transmission techniques for a wireless-power receiver
US10446923B2 (en) * 2015-12-30 2019-10-15 Huawei Technologies Co., Ltd. Antenna array with reduced mutual coupling effect
US20170194703A1 (en) * 2015-12-30 2017-07-06 Huawei Technologies Co., Ltd. Antenna array with reduced mutual coupling effect
CN106229617A (en) * 2015-12-31 2016-12-14 瑞声科技(新加坡)有限公司 The antenna structure of mobile electronic device
US20170194709A1 (en) * 2015-12-31 2017-07-06 Aac Acoustic Technologies (Shenzhen) Co., Ltd. Multi-Structure Metal Antenna
US10454168B2 (en) * 2016-01-22 2019-10-22 Airgain Incorporated Multi-element antenna for multiple bands of operation and method therefor
US11296414B2 (en) * 2016-01-22 2022-04-05 Airgain, Inc. Multi-element antenna for multiple bands of operation and method therefor
US20190036219A1 (en) * 2016-01-22 2019-01-31 Airgain Incorporated Multi-element antenna for multiple bands of operation and method therefor
US20170229760A1 (en) * 2016-02-08 2017-08-10 Microsoft Technology Licensing, Llc Cover of device acting as antenna of the device
US10446911B2 (en) * 2016-02-08 2019-10-15 Microsoft Technology Licensing, Llc Cover of device acting as antenna of the device
US11011824B2 (en) 2016-02-18 2021-05-18 Panasonic Intellectual Property Management Co., Ltd. Antenna unit and electronic device
US10651540B2 (en) * 2016-02-18 2020-05-12 Panasonic Intellectual Property Management Co., Ltd. Antenna unit and electronic device
US11527811B2 (en) 2016-02-18 2022-12-13 Panasonic Intellectual Property Management Co., Ltd. Antenna unit and electronic device
US20180083340A1 (en) * 2016-02-18 2018-03-22 Panasonic Intellectual Property Management Co., Ltd. Antenna unit and electronic device
US11855340B2 (en) 2016-02-19 2023-12-26 Yokowo Co., Ltd. Antenna device
US11456524B2 (en) * 2016-02-19 2022-09-27 Yokowo Co., Ltd. Antenna device
US10916848B2 (en) * 2016-03-22 2021-02-09 Yamaha Corporation Antenna
US20190044233A1 (en) * 2016-03-22 2019-02-07 Yamaha Corporation Antenna
US20190051968A1 (en) * 2016-03-29 2019-02-14 Fujikura Ltd. Film antenna and antenna device
US10720691B2 (en) * 2016-03-29 2020-07-21 Fujikura Ltd. Film antenna and antenna device
US10910725B2 (en) * 2016-05-16 2021-02-02 Motorola Solutions, Inc. Dual contra-wound helical antenna for a communication device
US20190074594A1 (en) * 2016-05-16 2019-03-07 Motorola Solutions, Inc Dual contra-wound helical antenna for a communication device
US20180277924A1 (en) * 2016-06-03 2018-09-27 Mazda Motor Corporation Glass antenna
US10541463B2 (en) * 2016-06-03 2020-01-21 Mazda Motor Corporation Glass antenna
US10784587B2 (en) * 2016-06-13 2020-09-22 Lapis Semiconductor Co., Ltd. Semiconductor device, communication system, and method of manufacturing semiconductor device
US20170365919A1 (en) * 2016-06-21 2017-12-21 Axis Ab Pcb antenna
US10651548B2 (en) * 2016-06-21 2020-05-12 Nissei Limited Substrate antenna
US10938097B2 (en) * 2016-06-21 2021-03-02 Axis Ab PCB antenna
US20170365918A1 (en) * 2016-06-21 2017-12-21 Nissei Limited Substrate type antenna
US20170373402A1 (en) * 2016-06-28 2017-12-28 Cubtek Inc. Series fed microstrip antenna structure
US11715890B2 (en) 2016-09-02 2023-08-01 Movandi Corporation Wireless transceiver having receive antennas and transmit antennas with orthogonal polarizations in a phased array antenna panel
US11502425B2 (en) 2016-09-02 2022-11-15 Silicon Valley Bank Wireless transceiver having receive antennas and transmit antennas with orthogonal polarizations in a phased array antenna panel
US11502424B2 (en) 2016-09-02 2022-11-15 Silicon Valley Bank Wireless transceiver having receive antennas and transmit antennas with orthogonal polarizations in a phased array antenna panel
US11394128B2 (en) 2016-09-02 2022-07-19 Silicon Valley Bank Wireless transceiver having receive antennas and transmit antennas with orthogonal polarizations in a phased array antenna panel
US11923610B2 (en) * 2016-09-09 2024-03-05 Samsung Electronics Co., Ltd. Antenna array
US20230198164A1 (en) * 2016-09-09 2023-06-22 Samsung Electronics Co., Ltd. Antenna array
US20180109000A1 (en) * 2016-10-13 2018-04-19 Delphi Technologies, Inc. Meander-type, frequency-scanned antenna with reduced beam squint for an automated vehicle radar system
US10014583B2 (en) * 2016-10-13 2018-07-03 Delphi Technologies, Inc. Meander-type, frequency-scanned antenna with reduced beam squint for an automated vehicle radar system
US11018411B2 (en) 2016-10-21 2021-05-25 DISH Technologies L.L.C. RF antenna arrangement configured to be a part of a lid to an apparatus
CN109964363A (en) * 2016-10-21 2019-07-02 迪讯技术有限责任公司 RF antenna arrangement configured as part of a cover of a device
CN109964363B (en) * 2016-10-21 2021-07-27 迪讯技术有限责任公司 RF antenna arrangement configured as part of a cover of a device
US20180115051A1 (en) * 2016-10-21 2018-04-26 Echostar Technologies L.L.C. Rf antenna arrangement configured to be a part of a lid to an apparatus
US10581141B2 (en) * 2016-10-21 2020-03-03 DISH Technologies L.L.C. RF antenna arrangement configured to be a part of a lid to an apparatus
US10971769B2 (en) 2016-11-01 2021-04-06 Duracell U.S. Operations, Inc. Reusable battery indicator with electrical lock and key
US10483634B2 (en) 2016-11-01 2019-11-19 Duracell U.S. Operations, Inc. Positive battery terminal antenna ground plane
US10818979B2 (en) 2016-11-01 2020-10-27 Duracell U.S. Operations, Inc. Single sided reusable battery indicator
US11024891B2 (en) 2016-11-01 2021-06-01 Duracell U.S. Operations, Inc. Reusable battery indicator with lock and key mechanism
US11024892B2 (en) 2016-11-01 2021-06-01 Duracell U.S. Operations, Inc. Dual sided reusable battery indicator
US11031686B2 (en) 2016-11-01 2021-06-08 Duracell U.S. Operations, Inc. Positive battery terminal antenna ground plane
US10608293B2 (en) 2016-11-01 2020-03-31 Duracell U.S. Operations, Inc. Dual sided reusable battery indicator
US11664539B2 (en) 2016-11-01 2023-05-30 Duracell U.S. Operations, Inc. Dual sided reusable battery indicator
US11696942B2 (en) 2016-11-01 2023-07-11 Duracell U.S. Operations, Inc. Reusable battery indicator with electrical lock and key
US10923954B2 (en) 2016-11-03 2021-02-16 Energous Corporation Wireless power receiver with a synchronous rectifier
US11777342B2 (en) 2016-11-03 2023-10-03 Energous Corporation Wireless power receiver with a transistor rectifier
US11664582B2 (en) 2016-11-18 2023-05-30 Movandi Corporation Phased array antenna panel having reduced passive loss of received signals
US10476312B2 (en) 2016-12-12 2019-11-12 Energous Corporation Methods of selectively activating antenna zones of a near-field charging pad to maximize wireless power delivered to a receiver
US11245289B2 (en) 2016-12-12 2022-02-08 Energous Corporation Circuit for managing wireless power transmitting devices
US11594902B2 (en) 2016-12-12 2023-02-28 Energous Corporation Circuit for managing multi-band operations of a wireless power transmitting device
US10355534B2 (en) 2016-12-12 2019-07-16 Energous Corporation Integrated circuit for managing wireless power transmitting devices
US20180166775A1 (en) * 2016-12-12 2018-06-14 AMI Research & Development, LLC Am/fm directional antenna array for vehicle
US10840743B2 (en) 2016-12-12 2020-11-17 Energous Corporation Circuit for managing wireless power transmitting devices
US10714819B2 (en) * 2016-12-12 2020-07-14 AMI Research & Development, LLC AM/FM directional antenna array for vehicle
US10454176B2 (en) * 2016-12-28 2019-10-22 Fujitsu Limited Antenna apparatus and electronic device
US20180183149A1 (en) * 2016-12-28 2018-06-28 Fujitsu Limited Antenna apparatus and electronic device
US10680319B2 (en) 2017-01-06 2020-06-09 Energous Corporation Devices and methods for reducing mutual coupling effects in wireless power transmission systems
US20180198198A1 (en) * 2017-01-11 2018-07-12 Denso Ten Limited Microstrip antenna
US10608332B2 (en) * 2017-01-11 2020-03-31 Denso Ten Limited Microstrip antenna
US20180205153A1 (en) * 2017-01-13 2018-07-19 The Florida International University Board Of Trustees Origami-folded antennas and methods for making the same
US10181650B2 (en) * 2017-01-13 2019-01-15 The Florida International University Board Of Trustees Origami-folded antennas and methods for making the same
US10700436B2 (en) 2017-01-13 2020-06-30 The Florida International University Board Of Trustees Origami-folded antennas and methods for making the same
US11652294B2 (en) * 2017-01-22 2023-05-16 Huawei Technologies Co., Ltd. Dual-band antenna
US20190020112A1 (en) * 2017-01-22 2019-01-17 Huawei Technologies Co., Ltd. Dual-band antenna
US20180212474A1 (en) * 2017-01-24 2018-07-26 Energous Corporation Microstrip antennas for wireless power transmitters
US10439442B2 (en) * 2017-01-24 2019-10-08 Energous Corporation Microstrip antennas for wireless power transmitters
US11063476B2 (en) * 2017-01-24 2021-07-13 Energous Corporation Microstrip antennas for wireless power transmitters
US11177577B2 (en) * 2017-02-21 2021-11-16 3M Innovative Properties Company Passive repeater device, microwave network, and method of designing a repeater device
US10276934B2 (en) * 2017-03-02 2019-04-30 Wistron Neweb Corporation Antenna structure
US10389161B2 (en) * 2017-03-15 2019-08-20 Energous Corporation Surface mount dielectric antennas for wireless power transmitters
US11011942B2 (en) 2017-03-30 2021-05-18 Energous Corporation Flat antennas having two or more resonant frequencies for use in wireless power transmission systems
US11121461B2 (en) * 2017-04-24 2021-09-14 Denso Corporation Antenna device
CN110546815A (en) * 2017-04-24 2019-12-06 株式会社电装 Antenna device
US11437705B2 (en) 2017-04-28 2022-09-06 DISH Technologies L.L.C. Radio frequency antenna for short range communications
US10862191B2 (en) 2017-04-28 2020-12-08 DISH Technologies L.L.C. Radio frequency antenna for short range communications
US10320055B2 (en) 2017-04-28 2019-06-11 DISH Technologies L.L.C. Radio frequency antenna for short range communications
US11637456B2 (en) 2017-05-12 2023-04-25 Energous Corporation Near-field antennas for accumulating radio frequency energy at different respective segments included in one or more channels of a conductive plate
US11245191B2 (en) 2017-05-12 2022-02-08 Energous Corporation Fabrication of near-field antennas for accumulating energy at a near-field distance with minimal far-field gain
US10511097B2 (en) 2017-05-12 2019-12-17 Energous Corporation Near-field antennas for accumulating energy at a near-field distance with minimal far-field gain
US11462949B2 (en) 2017-05-16 2022-10-04 Wireless electrical Grid LAN, WiGL Inc Wireless charging method and system
US20180342780A1 (en) * 2017-05-29 2018-11-29 Naohiro Itoh Antenna device and method for producing antenna device
US10916822B2 (en) * 2017-05-29 2021-02-09 Ricoh Company, Ltd. Antenna device and method for producing antenna device
US20220416442A1 (en) * 2017-05-30 2022-12-29 Movandi Corporation Three dimensional antenna array module
US11509066B2 (en) 2017-05-30 2022-11-22 Silicon Valley Bank Three dimensional antenna array module
US20180351262A1 (en) * 2017-05-30 2018-12-06 Movandi Corporation Three-dimensional antenna array module
US11509067B2 (en) * 2017-05-30 2022-11-22 Movandi Corporation Three-dimensional antenna array module
US11901635B2 (en) * 2017-05-30 2024-02-13 Movandi Corporation Three dimensional antenna array module
US10916861B2 (en) * 2017-05-30 2021-02-09 Movandi Corporation Three-dimensional antenna array module
US11659409B2 (en) 2017-05-30 2023-05-23 Movandi Corporation Non-line-of-sight (NLOS) coverage for millimeter wave communication
US11196184B2 (en) 2017-06-20 2021-12-07 Cubic Corporation Broadband antenna array
US10848853B2 (en) 2017-06-23 2020-11-24 Energous Corporation Systems, methods, and devices for utilizing a wire of a sound-producing device as an antenna for receipt of wirelessly delivered power
US11218795B2 (en) 2017-06-23 2022-01-04 Energous Corporation Systems, methods, and devices for utilizing a wire of a sound-producing device as an antenna for receipt of wirelessly delivered power
US10826178B2 (en) * 2017-07-03 2020-11-03 Compal Electronics, Inc. Multi-band antenna
US20190006755A1 (en) * 2017-07-03 2019-01-03 Compal Electronics, Inc. Multi-band antenna
US11728881B2 (en) 2017-07-11 2023-08-15 Movandi Corporation Active repeater device shared by multiple service providers to facilitate communication with customer premises equipment
US11558105B2 (en) 2017-07-11 2023-01-17 Movandi Corporation Active repeater device for operational mode based beam pattern changes for communication with a plurality of user equipment
US11018752B2 (en) 2017-07-11 2021-05-25 Silicon Valley Bank Reconfigurable and modular active repeater device
US11463154B2 (en) 2017-07-11 2022-10-04 Movandi Corporation Reconfigurable and modular active repeater device
US20190058255A1 (en) * 2017-08-18 2019-02-21 Unictron Technologies Corporation Antenna device capable of generating specific radiation pattern
US10916852B2 (en) * 2017-08-18 2021-02-09 Unictron Technologies Corporation Antenna device capable of generating specific radiation pattern
US10297905B2 (en) * 2017-08-22 2019-05-21 Quanta Computer Inc. Mobile device
US11024947B2 (en) 2017-08-30 2021-06-01 Lg Electronics Inc. Mobile terminal
US20190067797A1 (en) * 2017-08-30 2019-02-28 Lg Electronics Inc. Mobile terminal
US10700416B2 (en) * 2017-08-30 2020-06-30 Lg Electronics Inc. Mobile terminal
US10714984B2 (en) 2017-10-10 2020-07-14 Energous Corporation Systems, methods, and devices for using a battery as an antenna for receiving wirelessly delivered power from radio frequency power waves
US10910732B2 (en) * 2017-10-11 2021-02-02 Wispry, Inc. Collocated end-fire antenna and low-frequency antenna systems, devices, and methods
US20190109387A1 (en) * 2017-10-11 2019-04-11 Wispry, Inc. Collocated end-fire antenna and low-frequency antenna systems, devices, and methods
US20190123445A1 (en) * 2017-10-23 2019-04-25 Pegatron Corporation Electronic device
US11817721B2 (en) 2017-10-30 2023-11-14 Energous Corporation Systems and methods for managing coexistence of wireless-power signals and data signals operating in a same frequency band
US11342798B2 (en) 2017-10-30 2022-05-24 Energous Corporation Systems and methods for managing coexistence of wireless-power signals and data signals operating in a same frequency band
US11532877B2 (en) * 2017-10-30 2022-12-20 Ignion, S.L. Devices with radiating systems proximate to conductive bodies
US20190131707A1 (en) * 2017-10-31 2019-05-02 Communication Components Antenna Inc. Antenna array with abfn circuitry
US11133586B2 (en) * 2017-10-31 2021-09-28 Communication Components Antenna Inc. Antenna array with ABFN circuitry
US20220085851A1 (en) 2017-12-07 2022-03-17 Movandi Corporation Optimized multi-beam antenna array network with an extended radio frequency range
US11342968B2 (en) 2017-12-07 2022-05-24 Movandi Corporation Optimized multi-beam antenna array network with an extended radio frequency range
US11811468B2 (en) 2017-12-07 2023-11-07 Movandi Corporation Optimized multi-beam antenna array network with an extended radio frequency range
US11677450B2 (en) 2017-12-08 2023-06-13 Movandi Corporation Signal cancellation in radio frequency (RF) device network
US11742895B2 (en) 2017-12-08 2023-08-29 Movandi Corporation Controlled power transmission in radio frequency (RF) device network
US11462822B2 (en) * 2017-12-20 2022-10-04 Yokowo Co., Ltd. Antenna device for vehicle
US11283191B2 (en) * 2017-12-28 2022-03-22 Murata Manufacturing Co., Ltd. Antenna array and antenna module
US11276938B2 (en) * 2018-01-11 2022-03-15 Semtech Corporation Single layer antenna
US11710987B2 (en) 2018-02-02 2023-07-25 Energous Corporation Systems and methods for detecting wireless power receivers and other objects at a near-field charging pad
US10615647B2 (en) 2018-02-02 2020-04-07 Energous Corporation Systems and methods for detecting wireless power receivers and other objects at a near-field charging pad
US20230014090A1 (en) 2018-02-26 2023-01-19 Movandi Corporation Beam forming phased array antenna system for millimeter wave communication
US20230051891A1 (en) 2018-02-26 2023-02-16 Movandi Corporation Waveguide antenna element based beam forming phased array antenna system for millimeter wave communication
US11588254B2 (en) 2018-02-26 2023-02-21 Movandi Corporation Waveguide antenna element-based beam forming phased array antenna system for millimeter wave communication
US11552401B2 (en) 2018-02-26 2023-01-10 Movandi Corporation Waveguide antenna element based beam forming phased array antenna system for millimeter wave communication
US11721906B2 (en) 2018-02-26 2023-08-08 Movandi Corporation Beam forming phased array antenna system for millimeter wave communication
US11764486B2 (en) 2018-02-26 2023-09-19 Movandi Corporation Waveguide antenna element based beam forming phased array antenna system for millimeter wave communication
US11159057B2 (en) 2018-03-14 2021-10-26 Energous Corporation Loop antennas with selectively-activated feeds to control propagation patterns of wireless power signals
US11342683B2 (en) 2018-04-25 2022-05-24 Cubic Corporation Microwave/millimeter-wave waveguide to circuit board connector
US10879974B2 (en) * 2018-05-29 2020-12-29 Beijing Xiaomi Mobile Software Co., Ltd. Electronic device and antenna component thereof
US20190372635A1 (en) * 2018-05-29 2019-12-05 Beijing Xiaomi Mobile Solftware Co., Ltd. Electronic device and antenna component thereof
US10979828B2 (en) 2018-06-05 2021-04-13 Starkey Laboratories, Inc. Ear-worn electronic device incorporating chip antenna loading of antenna structure
US11699847B2 (en) 2018-06-25 2023-07-11 Energous Corporation Power wave transmission techniques to focus wirelessly delivered power at a receiving device
US11967760B2 (en) 2018-06-25 2024-04-23 Energous Corporation Power wave transmission techniques to focus wirelessly delivered power at a location to provide usable energy to a receiving device
US11515732B2 (en) 2018-06-25 2022-11-29 Energous Corporation Power wave transmission techniques to focus wirelessly delivered power at a receiving device
US10770796B2 (en) * 2018-09-24 2020-09-08 Mitsumi Electric Co., Ltd. Antenna device and method for manufacturing antenna device
US10991182B2 (en) * 2018-10-12 2021-04-27 Denso International America, Inc. Multi-axis polarized RF antenna assemblies for passive entry/passive start systems
US11714184B2 (en) 2018-10-12 2023-08-01 Denso International America, Inc. Up-sampling and cross-correlation for time of arrival determinations in passive entry/passive start systems
US20200136241A1 (en) * 2018-10-29 2020-04-30 Starkey Laboratories, Inc. Hearing device incorporating a primary antenna in conjunction with a chip antenna
US10931005B2 (en) * 2018-10-29 2021-02-23 Starkey Laboratories, Inc. Hearing device incorporating a primary antenna in conjunction with a chip antenna
US11437735B2 (en) 2018-11-14 2022-09-06 Energous Corporation Systems for receiving electromagnetic energy using antennas that are minimally affected by the presence of the human body
US11038265B2 (en) * 2018-11-16 2021-06-15 Electronics And Telecommunications Research Institute Semiconductor-based beamforming antenna
US11848496B2 (en) 2018-12-26 2023-12-19 Movandi Corporation Lens-enhanced communication device
US20210351516A1 (en) 2018-12-26 2021-11-11 Movandi Corporation Lens-enhanced communication device
US11721910B2 (en) 2018-12-26 2023-08-08 Movandi Corporation Lens-enhanced communication device
US11742586B2 (en) 2018-12-26 2023-08-29 Movandi Corporation Lens-enhanced communication device
US11539243B2 (en) 2019-01-28 2022-12-27 Energous Corporation Systems and methods for miniaturized antenna for wireless power transmissions
USD876403S1 (en) * 2019-02-04 2020-02-25 The Antenna Company Antenna
USD876404S1 (en) * 2019-02-04 2020-02-25 The Antenna Company Antenna
US11018779B2 (en) 2019-02-06 2021-05-25 Energous Corporation Systems and methods of estimating optimal phases to use for individual antennas in an antenna array
US11784726B2 (en) 2019-02-06 2023-10-10 Energous Corporation Systems and methods of estimating optimal phases to use for individual antennas in an antenna array
US11463179B2 (en) 2019-02-06 2022-10-04 Energous Corporation Systems and methods of estimating optimal phases to use for individual antennas in an antenna array
USD927468S1 (en) * 2019-04-17 2021-08-10 Japan Aviation Electronics Industry, Limited Antenna
USD926736S1 (en) * 2019-04-17 2021-08-03 Japan Aviation Electronics Industry, Limited Antenna
US11367948B2 (en) 2019-09-09 2022-06-21 Cubic Corporation Multi-element antenna conformed to a conical surface
US11799328B2 (en) 2019-09-20 2023-10-24 Energous Corporation Systems and methods of protecting wireless power receivers using surge protection provided by a rectifier, a depletion mode switch, and a coupling mechanism having multiple coupling locations
US11715980B2 (en) 2019-09-20 2023-08-01 Energous Corporation Classifying and detecting foreign objects using a power amplifier controller integrated circuit in wireless power transmission systems
US11139699B2 (en) 2019-09-20 2021-10-05 Energous Corporation Classifying and detecting foreign objects using a power amplifier controller integrated circuit in wireless power transmission systems
US11831361B2 (en) 2019-09-20 2023-11-28 Energous Corporation Systems and methods for machine learning based foreign object detection for wireless power transmission
US11381118B2 (en) 2019-09-20 2022-07-05 Energous Corporation Systems and methods for machine learning based foreign object detection for wireless power transmission
US11411441B2 (en) 2019-09-20 2022-08-09 Energous Corporation Systems and methods of protecting wireless power receivers using multiple rectifiers and establishing in-band communications using multiple rectifiers
US11121469B2 (en) * 2019-09-26 2021-09-14 Apple Inc. Millimeter wave antennas having continuously stacked radiating elements
CN112563728A (en) * 2019-09-26 2021-03-26 苹果公司 Millimeter wave antenna with successively stacked radiating elements
US10916856B1 (en) * 2019-10-04 2021-02-09 Garmin Switzerland Gmbh Dual band quadrifilar helix antenna
US11658378B2 (en) 2019-10-14 2023-05-23 International Business Machines Corporation Vertically transitioning between substrate integrated waveguides (SIWs) within a multilayered printed circuit board (PCB)
US11399428B2 (en) * 2019-10-14 2022-07-26 International Business Machines Corporation PCB with substrate integrated waveguides using multi-band monopole antenna feeds for high speed communication
US11757179B2 (en) * 2019-11-05 2023-09-12 Samsung Electronics Co., Ltd Antenna structure and electronic device including the same
US20210135351A1 (en) * 2019-11-05 2021-05-06 Samsung Electronics Co., Ltd. Antenna structure and electronic device including the same
US11075460B2 (en) * 2019-11-29 2021-07-27 Wistron Corp. Antenna structure
US11355966B2 (en) 2019-12-13 2022-06-07 Energous Corporation Charging pad with guiding contours to align an electronic device on the charging pad and efficiently transfer near-field radio-frequency energy to the electronic device
US20220328978A1 (en) * 2019-12-26 2022-10-13 Murata Manufacturing Co., Ltd. Antenna module and communication device equipped with the same
US11411437B2 (en) 2019-12-31 2022-08-09 Energous Corporation System for wirelessly transmitting energy without using beam-forming control
US11817719B2 (en) 2019-12-31 2023-11-14 Energous Corporation Systems and methods for controlling and managing operation of one or more power amplifiers to optimize the performance of one or more antennas
US10985617B1 (en) 2019-12-31 2021-04-20 Energous Corporation System for wirelessly transmitting energy at a near-field distance without using beam-forming control
US20210305706A1 (en) * 2020-03-30 2021-09-30 Compal Electronics, Inc. Antenna device
US11764476B2 (en) * 2020-03-30 2023-09-19 Compal Electronics, Inc. Antenna device
US11799324B2 (en) 2020-04-13 2023-10-24 Energous Corporation Wireless-power transmitting device for creating a uniform near-field charging area
US11735804B2 (en) * 2020-05-11 2023-08-22 Qualcomm Incorporated Multi-core broadband PCB antenna
US11764460B2 (en) * 2020-06-05 2023-09-19 Anhui Huami Information Technology Co., Ltd. Wearable devices
US11837754B2 (en) 2020-12-30 2023-12-05 Duracell U.S. Operations, Inc. Magnetic battery cell connection mechanism
US11916398B2 (en) 2021-12-29 2024-02-27 Energous Corporation Small form-factor devices with integrated and modular harvesting receivers, and shelving-mounted wireless-power transmitters for use therewith
US11973271B2 (en) 2022-04-08 2024-04-30 Ubiquiti Inc. Synchronized multiple-radio antenna systems and methods

Also Published As

Publication number Publication date
US20060001575A1 (en) 2006-01-05

Similar Documents

Publication Publication Date Title
US7079079B2 (en) Low profile compact multi-band meanderline loaded antenna
US7193565B2 (en) Meanderline coupled quadband antenna for wireless handsets
US6842158B2 (en) Wideband low profile spiral-shaped transmission line antenna
US6429819B1 (en) Dual band patch bowtie slot antenna structure
US7978141B2 (en) Couple-fed multi-band loop antenna
EP2311138B1 (en) Antenna arrangement
US6937193B2 (en) Wideband printed monopole antenna
US6856286B2 (en) Dual band spiral-shaped antenna
US6788257B2 (en) Dual-frequency planar antenna
EP2311139B1 (en) Antenna arrangement
US20060284770A1 (en) Compact dual band antenna having common elements and common feed
US7173566B2 (en) Low-sidelobe dual-band and broadband flat endfire antenna
US20030151555A1 (en) Antennas having multiple resonant frequency bands and wireless terminals incorporating the same
CA2444445A1 (en) An integrated antenna for laptop applications
JP2011103657A (en) Compact multiple-band antenna for wireless device
US6184836B1 (en) Dual band antenna having mirror image meandering segments and wireless communicators incorporating same
US6897817B2 (en) Independently tunable multiband meanderline loaded antenna
US20050270238A1 (en) Tri-band antenna for digital multimedia broadcast (DMB) applications
JP4431360B2 (en) Multiband antenna
WO2004075340A2 (en) Broadband combination meanderline and patch antenna
KR20040051002A (en) Printed Multiband Antenna
KR20040038961A (en) A patch antenna using F-type feed

Legal Events

Date Code Title Description
AS Assignment

Owner name: SKYCROSS, INC., FLORIDA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JO, YOUNG-MIN;CAIMI, FRANK M.;REEL/FRAME:016125/0826

Effective date: 20041227

FPAY Fee payment

Year of fee payment: 4

AS Assignment

Owner name: SQUARE 1 BANK, NORTH CAROLINA

Free format text: SECURITY INTEREST;ASSIGNOR:SKYCROSS, INC.;REEL/FRAME:024651/0507

Effective date: 20100701

AS Assignment

Owner name: NXT CAPITAL, LLC, ILLINOIS

Free format text: SECURITY AGREEMENT;ASSIGNOR:SKYCROSS, INC.;REEL/FRAME:028273/0972

Effective date: 20120525

AS Assignment

Owner name: EAST WEST BANK, CALIFORNIA

Free format text: SECURITY INTEREST;ASSIGNOR:SKYCROSS, INC.;REEL/FRAME:030539/0601

Effective date: 20130325

AS Assignment

Owner name: SKYCROSS, INC., FLORIDA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:SQUARE 1 BANK;REEL/FRAME:031189/0401

Effective date: 20130327

FPAY Fee payment

Year of fee payment: 8

AS Assignment

Owner name: HERCULES TECHNOLOGY GROWTH CAPITAL, INC., CALIFORN

Free format text: SECURITY INTEREST;ASSIGNOR:SKYCROSS, INC.;REEL/FRAME:033244/0853

Effective date: 20140625

AS Assignment

Owner name: ACHILLES TECHNOLOGY MANAGEMENT CO II, INC., CALIFO

Free format text: SECURED PARTY BILL OF SALE AND ASSIGNMENT;ASSIGNOR:HERCULES CAPITAL, INC.;REEL/FRAME:039114/0803

Effective date: 20160620

AS Assignment

Owner name: SKYCROSS, INC., FLORIDA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:NXT CAPITAL, LLC;REEL/FRAME:039918/0726

Effective date: 20160906

Owner name: HERCULES CAPITAL, INC., CALIFORNIA

Free format text: CHANGE OF NAME;ASSIGNOR:HERCULES TECHNOLOGY GROWTH CAPITAL, INC.;REEL/FRAME:039918/0670

Effective date: 20160329

AS Assignment

Owner name: SKYCROSS, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:EAST WEST BANK;REEL/FRAME:040145/0883

Effective date: 20160907

AS Assignment

Owner name: SKYCROSS KOREA CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ACHILLES TECHNOLOGY MANAGEMENT CO II, INC.;REEL/FRAME:043755/0829

Effective date: 20170814

AS Assignment

Owner name: SKYCROSS CO., LTD., KOREA, REPUBLIC OF

Free format text: CHANGE OF NAME;ASSIGNOR:SKYCROSS KOREA CO., LTD.;REEL/FRAME:045032/0007

Effective date: 20170831

FEPP Fee payment procedure

Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.)

LAPS Lapse for failure to pay maintenance fees

Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.)

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20180718